Issue #1053 - Drop support Android and remove Fennec - Part 1a: Remove mobile/android

3 files changed, 0 insertions, 1216 deletions

diff --git a/mobile/android/thirdparty/com/jakewharton/disklrucache/DiskLruCache.java b/mobile/android/thirdparty/com/jakewharton/disklrucache/DiskLruCache.java
deleted file mode 100644
index e81e7fbcc..000000000
--- a/mobile/android/thirdparty/com/jakewharton/disklrucache/DiskLruCache.java
+++ /dev/null
@@ -1,943 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jakewharton.disklrucache;
-
-import java.io.BufferedWriter;
-import java.io.Closeable;
-import java.io.EOFException;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.FilterOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.Writer;
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.concurrent.Callable;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-/**
- * A cache that uses a bounded amount of space on a filesystem. Each cache
- * entry has a string key and a fixed number of values. Each key must match
- * the regex <strong>[a-z0-9_-]{1,120}</strong>. Values are byte sequences,
- * accessible as streams or files. Each value must be between {@code 0} and
- * {@code Integer.MAX_VALUE} bytes in length.
- *
- * <p>The cache stores its data in a directory on the filesystem. This
- * directory must be exclusive to the cache; the cache may delete or overwrite
- * files from its directory. It is an error for multiple processes to use the
- * same cache directory at the same time.
- *
- * <p>This cache limits the number of bytes that it will store on the
- * filesystem. When the number of stored bytes exceeds the limit, the cache will
- * remove entries in the background until the limit is satisfied. The limit is
- * not strict: the cache may temporarily exceed it while waiting for files to be
- * deleted. The limit does not include filesystem overhead or the cache
- * journal so space-sensitive applications should set a conservative limit.
- *
- * <p>Clients call {@link #edit} to create or update the values of an entry. An
- * entry may have only one editor at one time; if a value is not available to be
- * edited then {@link #edit} will return null.
- * <ul>
- * <li>When an entry is being <strong>created</strong> it is necessary to
- * supply a full set of values; the empty value should be used as a
- * placeholder if necessary.
- * <li>When an entry is being <strong>edited</strong>, it is not necessary
- * to supply data for every value; values default to their previous
- * value.
- * </ul>
- * Every {@link #edit} call must be matched by a call to {@link Editor#commit}
- * or {@link Editor#abort}. Committing is atomic: a read observes the full set
- * of values as they were before or after the commit, but never a mix of values.
- *
- * <p>Clients call {@link #get} to read a snapshot of an entry. The read will
- * observe the value at the time that {@link #get} was called. Updates and
- * removals after the call do not impact ongoing reads.
- *
- * <p>This class is tolerant of some I/O errors. If files are missing from the
- * filesystem, the corresponding entries will be dropped from the cache. If
- * an error occurs while writing a cache value, the edit will fail silently.
- * Callers should handle other problems by catching {@code IOException} and
- * responding appropriately.
- */
-public final class DiskLruCache implements Closeable {
-  static final String JOURNAL_FILE = "journal";
-  static final String JOURNAL_FILE_TEMP = "journal.tmp";
-  static final String JOURNAL_FILE_BACKUP = "journal.bkp";
-  static final String MAGIC = "libcore.io.DiskLruCache";
-  static final String VERSION_1 = "1";
-  static final long ANY_SEQUENCE_NUMBER = -1;
-  static final String STRING_KEY_PATTERN = "[a-z0-9_-]{1,120}";
-  static final Pattern LEGAL_KEY_PATTERN = Pattern.compile(STRING_KEY_PATTERN);
-  private static final String CLEAN = "CLEAN";
-  private static final String DIRTY = "DIRTY";
-  private static final String REMOVE = "REMOVE";
-  private static final String READ = "READ";
-
-    /*
-     * This cache uses a journal file named "journal". A typical journal file
-     * looks like this:
-     *     libcore.io.DiskLruCache
-     *     1
-     *     100
-     *     2
-     *
-     *     CLEAN 3400330d1dfc7f3f7f4b8d4d803dfcf6 832 21054
-     *     DIRTY 335c4c6028171cfddfbaae1a9c313c52
-     *     CLEAN 335c4c6028171cfddfbaae1a9c313c52 3934 2342
-     *     REMOVE 335c4c6028171cfddfbaae1a9c313c52
-     *     DIRTY 1ab96a171faeeee38496d8b330771a7a
-     *     CLEAN 1ab96a171faeeee38496d8b330771a7a 1600 234
-     *     READ 335c4c6028171cfddfbaae1a9c313c52
-     *     READ 3400330d1dfc7f3f7f4b8d4d803dfcf6
-     *
-     * The first five lines of the journal form its header. They are the
-     * constant string "libcore.io.DiskLruCache", the disk cache's version,
-     * the application's version, the value count, and a blank line.
-     *
-     * Each of the subsequent lines in the file is a record of the state of a
-     * cache entry. Each line contains space-separated values: a state, a key,
-     * and optional state-specific values.
-     *   o DIRTY lines track that an entry is actively being created or updated.
-     *     Every successful DIRTY action should be followed by a CLEAN or REMOVE
-     *     action. DIRTY lines without a matching CLEAN or REMOVE indicate that
-     *     temporary files may need to be deleted.
-     *   o CLEAN lines track a cache entry that has been successfully published
-     *     and may be read. A publish line is followed by the lengths of each of
-     *     its values.
-     *   o READ lines track accesses for LRU.
-     *   o REMOVE lines track entries that have been deleted.
-     *
-     * The journal file is appended to as cache operations occur. The journal may
-     * occasionally be compacted by dropping redundant lines. A temporary file named
-     * "journal.tmp" will be used during compaction; that file should be deleted if
-     * it exists when the cache is opened.
-     */
-
-  private final File directory;
-  private final File journalFile;
-  private final File journalFileTmp;
-  private final File journalFileBackup;
-  private final int appVersion;
-  private long maxSize;
-  private final int valueCount;
-  private long size = 0;
-  private Writer journalWriter;
-  private final LinkedHashMap<String, Entry> lruEntries =
-      new LinkedHashMap<String, Entry>(0, 0.75f, true);
-  private int redundantOpCount;
-
-  /**
-   * To differentiate between old and current snapshots, each entry is given
-   * a sequence number each time an edit is committed. A snapshot is stale if
-   * its sequence number is not equal to its entry's sequence number.
-   */
-  private long nextSequenceNumber = 0;
-
-  /** This cache uses a single background thread to evict entries. */
-  final ThreadPoolExecutor executorService =
-      new ThreadPoolExecutor(0, 1, 60L, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>());
-  private final Callable<Void> cleanupCallable = new Callable<Void>() {
-    public Void call() throws Exception {
-      synchronized (DiskLruCache.this) {
-        if (journalWriter == null) {
-          return null; // Closed.
-        }
-        trimToSize();
-        if (journalRebuildRequired()) {
-          rebuildJournal();
-          redundantOpCount = 0;
-        }
-      }
-      return null;
-    }
-  };
-
-  private DiskLruCache(File directory, int appVersion, int valueCount, long maxSize) {
-    this.directory = directory;
-    this.appVersion = appVersion;
-    this.journalFile = new File(directory, JOURNAL_FILE);
-    this.journalFileTmp = new File(directory, JOURNAL_FILE_TEMP);
-    this.journalFileBackup = new File(directory, JOURNAL_FILE_BACKUP);
-    this.valueCount = valueCount;
-    this.maxSize = maxSize;
-  }
-
-  /**
-   * Opens the cache in {@code directory}, creating a cache if none exists
-   * there.
-   *
-   * @param directory a writable directory
-   * @param valueCount the number of values per cache entry. Must be positive.
-   * @param maxSize the maximum number of bytes this cache should use to store
-   * @throws IOException if reading or writing the cache directory fails
-   */
-  public static DiskLruCache open(File directory, int appVersion, int valueCount, long maxSize)
-      throws IOException {
-    if (maxSize <= 0) {
-      throw new IllegalArgumentException("maxSize <= 0");
-    }
-    if (valueCount <= 0) {
-      throw new IllegalArgumentException("valueCount <= 0");
-    }
-
-    // If a bkp file exists, use it instead.
-    File backupFile = new File(directory, JOURNAL_FILE_BACKUP);
-    if (backupFile.exists()) {
-      File journalFile = new File(directory, JOURNAL_FILE);
-      // If journal file also exists just delete backup file.
-      if (journalFile.exists()) {
-        backupFile.delete();
-      } else {
-        renameTo(backupFile, journalFile, false);
-      }
-    }
-
-    // Prefer to pick up where we left off.
-    DiskLruCache cache = new DiskLruCache(directory, appVersion, valueCount, maxSize);
-    if (cache.journalFile.exists()) {
-      try {
-        cache.readJournal();
-        cache.processJournal();
-        return cache;
-      } catch (IOException journalIsCorrupt) {
-        System.out
-            .println("DiskLruCache "
-                + directory
-                + " is corrupt: "
-                + journalIsCorrupt.getMessage()
-                + ", removing");
-        cache.delete();
-      }
-    }
-
-    // Create a new empty cache.
-    directory.mkdirs();
-    cache = new DiskLruCache(directory, appVersion, valueCount, maxSize);
-    cache.rebuildJournal();
-    return cache;
-  }
-
-  private void readJournal() throws IOException {
-    StrictLineReader reader = new StrictLineReader(new FileInputStream(journalFile), Util.US_ASCII);
-    try {
-      String magic = reader.readLine();
-      String version = reader.readLine();
-      String appVersionString = reader.readLine();
-      String valueCountString = reader.readLine();
-      String blank = reader.readLine();
-      if (!MAGIC.equals(magic)
-          || !VERSION_1.equals(version)
-          || !Integer.toString(appVersion).equals(appVersionString)
-          || !Integer.toString(valueCount).equals(valueCountString)
-          || !"".equals(blank)) {
-        throw new IOException("unexpected journal header: [" + magic + ", " + version + ", "
-            + valueCountString + ", " + blank + "]");
-      }
-
-      int lineCount = 0;
-      while (true) {
-        try {
-          readJournalLine(reader.readLine());
-          lineCount++;
-        } catch (EOFException endOfJournal) {
-          break;
-        }
-      }
-      redundantOpCount = lineCount - lruEntries.size();
-
-      // If we ended on a truncated line, rebuild the journal before appending to it.
-      if (reader.hasUnterminatedLine()) {
-        rebuildJournal();
-      } else {
-        journalWriter = new BufferedWriter(new OutputStreamWriter(
-            new FileOutputStream(journalFile, true), Util.US_ASCII));
-      }
-    } finally {
-      Util.closeQuietly(reader);
-    }
-  }
-
-  private void readJournalLine(String line) throws IOException {
-    int firstSpace = line.indexOf(' ');
-    if (firstSpace == -1) {
-      throw new IOException("unexpected journal line: " + line);
-    }
-
-    int keyBegin = firstSpace + 1;
-    int secondSpace = line.indexOf(' ', keyBegin);
-    final String key;
-    if (secondSpace == -1) {
-      key = line.substring(keyBegin);
-      if (firstSpace == REMOVE.length() && line.startsWith(REMOVE)) {
-        lruEntries.remove(key);
-        return;
-      }
-    } else {
-      key = line.substring(keyBegin, secondSpace);
-    }
-
-    Entry entry = lruEntries.get(key);
-    if (entry == null) {
-      entry = new Entry(key);
-      lruEntries.put(key, entry);
-    }
-
-    if (secondSpace != -1 && firstSpace == CLEAN.length() && line.startsWith(CLEAN)) {
-      String[] parts = line.substring(secondSpace + 1).split(" ");
-      entry.readable = true;
-      entry.currentEditor = null;
-      entry.setLengths(parts);
-    } else if (secondSpace == -1 && firstSpace == DIRTY.length() && line.startsWith(DIRTY)) {
-      entry.currentEditor = new Editor(entry);
-    } else if (secondSpace == -1 && firstSpace == READ.length() && line.startsWith(READ)) {
-      // This work was already done by calling lruEntries.get().
-    } else {
-      throw new IOException("unexpected journal line: " + line);
-    }
-  }
-
-  /**
-   * Computes the initial size and collects garbage as a part of opening the
-   * cache. Dirty entries are assumed to be inconsistent and will be deleted.
-   */
-  private void processJournal() throws IOException {
-    deleteIfExists(journalFileTmp);
-    for (Iterator<Entry> i = lruEntries.values().iterator(); i.hasNext(); ) {
-      Entry entry = i.next();
-      if (entry.currentEditor == null) {
-        for (int t = 0; t < valueCount; t++) {
-          size += entry.lengths[t];
-        }
-      } else {
-        entry.currentEditor = null;
-        for (int t = 0; t < valueCount; t++) {
-          deleteIfExists(entry.getCleanFile(t));
-          deleteIfExists(entry.getDirtyFile(t));
-        }
-        i.remove();
-      }
-    }
-  }
-
-  /**
-   * Creates a new journal that omits redundant information. This replaces the
-   * current journal if it exists.
-   */
-  private synchronized void rebuildJournal() throws IOException {
-    if (journalWriter != null) {
-      journalWriter.close();
-    }
-
-    Writer writer = new BufferedWriter(
-        new OutputStreamWriter(new FileOutputStream(journalFileTmp), Util.US_ASCII));
-    try {
-      writer.write(MAGIC);
-      writer.write("\n");
-      writer.write(VERSION_1);
-      writer.write("\n");
-      writer.write(Integer.toString(appVersion));
-      writer.write("\n");
-      writer.write(Integer.toString(valueCount));
-      writer.write("\n");
-      writer.write("\n");
-
-      for (Entry entry : lruEntries.values()) {
-        if (entry.currentEditor != null) {
-          writer.write(DIRTY + ' ' + entry.key + '\n');
-        } else {
-          writer.write(CLEAN + ' ' + entry.key + entry.getLengths() + '\n');
-        }
-      }
-    } finally {
-      writer.close();
-    }
-
-    if (journalFile.exists()) {
-      renameTo(journalFile, journalFileBackup, true);
-    }
-    renameTo(journalFileTmp, journalFile, false);
-    journalFileBackup.delete();
-
-    journalWriter = new BufferedWriter(
-        new OutputStreamWriter(new FileOutputStream(journalFile, true), Util.US_ASCII));
-  }
-
-  private static void deleteIfExists(File file) throws IOException {
-    if (file.exists() && !file.delete()) {
-      throw new IOException();
-    }
-  }
-
-  private static void renameTo(File from, File to, boolean deleteDestination) throws IOException {
-    if (deleteDestination) {
-      deleteIfExists(to);
-    }
-    if (!from.renameTo(to)) {
-      throw new IOException();
-    }
-  }
-
-  /**
-   * Returns a snapshot of the entry named {@code key}, or null if it doesn't
-   * exist is not currently readable. If a value is returned, it is moved to
-   * the head of the LRU queue.
-   */
-  public synchronized Snapshot get(String key) throws IOException {
-    checkNotClosed();
-    validateKey(key);
-    Entry entry = lruEntries.get(key);
-    if (entry == null) {
-      return null;
-    }
-
-    if (!entry.readable) {
-      return null;
-    }
-
-    // Open all streams eagerly to guarantee that we see a single published
-    // snapshot. If we opened streams lazily then the streams could come
-    // from different edits.
-    InputStream[] ins = new InputStream[valueCount];
-    try {
-      for (int i = 0; i < valueCount; i++) {
-        ins[i] = new FileInputStream(entry.getCleanFile(i));
-      }
-    } catch (FileNotFoundException e) {
-      // A file must have been deleted manually!
-      for (int i = 0; i < valueCount; i++) {
-        if (ins[i] != null) {
-          Util.closeQuietly(ins[i]);
-        } else {
-          break;
-        }
-      }
-      return null;
-    }
-
-    redundantOpCount++;
-    journalWriter.append(READ + ' ' + key + '\n');
-    if (journalRebuildRequired()) {
-      executorService.submit(cleanupCallable);
-    }
-
-    return new Snapshot(key, entry.sequenceNumber, ins, entry.lengths);
-  }
-
-  /**
-   * Returns an editor for the entry named {@code key}, or null if another
-   * edit is in progress.
-   */
-  public Editor edit(String key) throws IOException {
-    return edit(key, ANY_SEQUENCE_NUMBER);
-  }
-
-  private synchronized Editor edit(String key, long expectedSequenceNumber) throws IOException {
-    checkNotClosed();
-    validateKey(key);
-    Entry entry = lruEntries.get(key);
-    if (expectedSequenceNumber != ANY_SEQUENCE_NUMBER && (entry == null
-        || entry.sequenceNumber != expectedSequenceNumber)) {
-      return null; // Snapshot is stale.
-    }
-    if (entry == null) {
-      entry = new Entry(key);
-      lruEntries.put(key, entry);
-    } else if (entry.currentEditor != null) {
-      return null; // Another edit is in progress.
-    }
-
-    Editor editor = new Editor(entry);
-    entry.currentEditor = editor;
-
-    // Flush the journal before creating files to prevent file leaks.
-    journalWriter.write(DIRTY + ' ' + key + '\n');
-    journalWriter.flush();
-    return editor;
-  }
-
-  /** Returns the directory where this cache stores its data. */
-  public File getDirectory() {
-    return directory;
-  }
-
-  /**
-   * Returns the maximum number of bytes that this cache should use to store
-   * its data.
-   */
-  public synchronized long getMaxSize() {
-    return maxSize;
-  }
-
-  /**
-   * Changes the maximum number of bytes the cache can store and queues a job
-   * to trim the existing store, if necessary.
-   */
-  public synchronized void setMaxSize(long maxSize) {
-    this.maxSize = maxSize;
-    executorService.submit(cleanupCallable);
-  }
-
-  /**
-   * Returns the number of bytes currently being used to store the values in
-   * this cache. This may be greater than the max size if a background
-   * deletion is pending.
-   */
-  public synchronized long size() {
-    return size;
-  }
-
-  private synchronized void completeEdit(Editor editor, boolean success) throws IOException {
-    Entry entry = editor.entry;
-    if (entry.currentEditor != editor) {
-      throw new IllegalStateException();
-    }
-
-    // If this edit is creating the entry for the first time, every index must have a value.
-    if (success && !entry.readable) {
-      for (int i = 0; i < valueCount; i++) {
-        if (!editor.written[i]) {
-          editor.abort();
-          throw new IllegalStateException("Newly created entry didn't create value for index " + i);
-        }
-        if (!entry.getDirtyFile(i).exists()) {
-          editor.abort();
-          return;
-        }
-      }
-    }
-
-    for (int i = 0; i < valueCount; i++) {
-      File dirty = entry.getDirtyFile(i);
-      if (success) {
-        if (dirty.exists()) {
-          File clean = entry.getCleanFile(i);
-          dirty.renameTo(clean);
-          long oldLength = entry.lengths[i];
-          long newLength = clean.length();
-          entry.lengths[i] = newLength;
-          size = size - oldLength + newLength;
-        }
-      } else {
-        deleteIfExists(dirty);
-      }
-    }
-
-    redundantOpCount++;
-    entry.currentEditor = null;
-    if (entry.readable | success) {
-      entry.readable = true;
-      journalWriter.write(CLEAN + ' ' + entry.key + entry.getLengths() + '\n');
-      if (success) {
-        entry.sequenceNumber = nextSequenceNumber++;
-      }
-    } else {
-      lruEntries.remove(entry.key);
-      journalWriter.write(REMOVE + ' ' + entry.key + '\n');
-    }
-    journalWriter.flush();
-
-    if (size > maxSize || journalRebuildRequired()) {
-      executorService.submit(cleanupCallable);
-    }
-  }
-
-  /**
-   * We only rebuild the journal when it will halve the size of the journal
-   * and eliminate at least 2000 ops.
-   */
-  private boolean journalRebuildRequired() {
-    final int redundantOpCompactThreshold = 2000;
-    return redundantOpCount >= redundantOpCompactThreshold //
-        && redundantOpCount >= lruEntries.size();
-  }
-
-  /**
-   * Drops the entry for {@code key} if it exists and can be removed. Entries
-   * actively being edited cannot be removed.
-   *
-   * @return true if an entry was removed.
-   */
-  public synchronized boolean remove(String key) throws IOException {
-    checkNotClosed();
-    validateKey(key);
-    Entry entry = lruEntries.get(key);
-    if (entry == null || entry.currentEditor != null) {
-      return false;
-    }
-
-    for (int i = 0; i < valueCount; i++) {
-      File file = entry.getCleanFile(i);
-      if (file.exists() && !file.delete()) {
-        throw new IOException("failed to delete " + file);
-      }
-      size -= entry.lengths[i];
-      entry.lengths[i] = 0;
-    }
-
-    redundantOpCount++;
-    journalWriter.append(REMOVE + ' ' + key + '\n');
-    lruEntries.remove(key);
-
-    if (journalRebuildRequired()) {
-      executorService.submit(cleanupCallable);
-    }
-
-    return true;
-  }
-
-  /** Returns true if this cache has been closed. */
-  public synchronized boolean isClosed() {
-    return journalWriter == null;
-  }
-
-  private void checkNotClosed() {
-    if (journalWriter == null) {
-      throw new IllegalStateException("cache is closed");
-    }
-  }
-
-  /** Force buffered operations to the filesystem. */
-  public synchronized void flush() throws IOException {
-    checkNotClosed();
-    trimToSize();
-    journalWriter.flush();
-  }
-
-  /** Closes this cache. Stored values will remain on the filesystem. */
-  public synchronized void close() throws IOException {
-    if (journalWriter == null) {
-      return; // Already closed.
-    }
-    for (Entry entry : new ArrayList<Entry>(lruEntries.values())) {
-      if (entry.currentEditor != null) {
-        entry.currentEditor.abort();
-      }
-    }
-    trimToSize();
-    journalWriter.close();
-    journalWriter = null;
-  }
-
-  private void trimToSize() throws IOException {
-    while (size > maxSize) {
-      Map.Entry<String, Entry> toEvict = lruEntries.entrySet().iterator().next();
-      remove(toEvict.getKey());
-    }
-  }
-
-  /**
-   * Closes the cache and deletes all of its stored values. This will delete
-   * all files in the cache directory including files that weren't created by
-   * the cache.
-   */
-  public void delete() throws IOException {
-    close();
-    Util.deleteContents(directory);
-  }
-
-  private void validateKey(String key) {
-    Matcher matcher = LEGAL_KEY_PATTERN.matcher(key);
-    if (!matcher.matches()) {
-      throw new IllegalArgumentException("keys must match regex "
-              + STRING_KEY_PATTERN + ": \"" + key + "\"");
-    }
-  }
-
-  private static String inputStreamToString(InputStream in) throws IOException {
-    return Util.readFully(new InputStreamReader(in, Util.UTF_8));
-  }
-
-  /** A snapshot of the values for an entry. */
-  public final class Snapshot implements Closeable {
-    private final String key;
-    private final long sequenceNumber;
-    private final InputStream[] ins;
-    private final long[] lengths;
-
-    private Snapshot(String key, long sequenceNumber, InputStream[] ins, long[] lengths) {
-      this.key = key;
-      this.sequenceNumber = sequenceNumber;
-      this.ins = ins;
-      this.lengths = lengths;
-    }
-
-    /**
-     * Returns an editor for this snapshot's entry, or null if either the
-     * entry has changed since this snapshot was created or if another edit
-     * is in progress.
-     */
-    public Editor edit() throws IOException {
-      return DiskLruCache.this.edit(key, sequenceNumber);
-    }
-
-    /** Returns the unbuffered stream with the value for {@code index}. */
-    public InputStream getInputStream(int index) {
-      return ins[index];
-    }
-
-    /** Returns the string value for {@code index}. */
-    public String getString(int index) throws IOException {
-      return inputStreamToString(getInputStream(index));
-    }
-
-    /** Returns the byte length of the value for {@code index}. */
-    public long getLength(int index) {
-      return lengths[index];
-    }
-
-    public void close() {
-      for (InputStream in : ins) {
-        Util.closeQuietly(in);
-      }
-    }
-  }
-
-  private static final OutputStream NULL_OUTPUT_STREAM = new OutputStream() {
-    @Override
-    public void write(int b) throws IOException {
-      // Eat all writes silently. Nom nom.
-    }
-  };
-
-  /** Edits the values for an entry. */
-  public final class Editor {
-    private final Entry entry;
-    private final boolean[] written;
-    private boolean hasErrors;
-    private boolean committed;
-
-    private Editor(Entry entry) {
-      this.entry = entry;
-      this.written = (entry.readable) ? null : new boolean[valueCount];
-    }
-
-    /**
-     * Returns an unbuffered input stream to read the last committed value,
-     * or null if no value has been committed.
-     */
-    public InputStream newInputStream(int index) throws IOException {
-      synchronized (DiskLruCache.this) {
-        if (entry.currentEditor != this) {
-          throw new IllegalStateException();
-        }
-        if (!entry.readable) {
-          return null;
-        }
-        try {
-          return new FileInputStream(entry.getCleanFile(index));
-        } catch (FileNotFoundException e) {
-          return null;
-        }
-      }
-    }
-
-    /**
-     * Returns the last committed value as a string, or null if no value
-     * has been committed.
-     */
-    public String getString(int index) throws IOException {
-      InputStream in = newInputStream(index);
-      return in != null ? inputStreamToString(in) : null;
-    }
-
-    /**
-     * Returns a new unbuffered output stream to write the value at
-     * {@code index}. If the underlying output stream encounters errors
-     * when writing to the filesystem, this edit will be aborted when
-     * {@link #commit} is called. The returned output stream does not throw
-     * IOExceptions.
-     */
-    public OutputStream newOutputStream(int index) throws IOException {
-      if (index < 0 || index >= valueCount) {
-        throw new IllegalArgumentException("Expected index " + index + " to "
-                + "be greater than 0 and less than the maximum value count "
-                + "of " + valueCount);
-      }
-      synchronized (DiskLruCache.this) {
-        if (entry.currentEditor != this) {
-          throw new IllegalStateException();
-        }
-        if (!entry.readable) {
-          written[index] = true;
-        }
-        File dirtyFile = entry.getDirtyFile(index);
-        FileOutputStream outputStream;
-        try {
-          outputStream = new FileOutputStream(dirtyFile);
-        } catch (FileNotFoundException e) {
-          // Attempt to recreate the cache directory.
-          directory.mkdirs();
-          try {
-            outputStream = new FileOutputStream(dirtyFile);
-          } catch (FileNotFoundException e2) {
-            // We are unable to recover. Silently eat the writes.
-            return NULL_OUTPUT_STREAM;
-          }
-        }
-        return new FaultHidingOutputStream(outputStream);
-      }
-    }
-
-    /** Sets the value at {@code index} to {@code value}. */
-    public void set(int index, String value) throws IOException {
-      Writer writer = null;
-      try {
-        writer = new OutputStreamWriter(newOutputStream(index), Util.UTF_8);
-        writer.write(value);
-      } finally {
-        Util.closeQuietly(writer);
-      }
-    }
-
-    /**
-     * Commits this edit so it is visible to readers.  This releases the
-     * edit lock so another edit may be started on the same key.
-     */
-    public void commit() throws IOException {
-      if (hasErrors) {
-        completeEdit(this, false);
-        remove(entry.key); // The previous entry is stale.
-      } else {
-        completeEdit(this, true);
-      }
-      committed = true;
-    }
-
-    /**
-     * Aborts this edit. This releases the edit lock so another edit may be
-     * started on the same key.
-     */
-    public void abort() throws IOException {
-      completeEdit(this, false);
-    }
-
-    public void abortUnlessCommitted() {
-      if (!committed) {
-        try {
-          abort();
-        } catch (IOException ignored) {
-        }
-      }
-    }
-
-    private class FaultHidingOutputStream extends FilterOutputStream {
-      private FaultHidingOutputStream(OutputStream out) {
-        super(out);
-      }
-
-      @Override public void write(int oneByte) {
-        try {
-          out.write(oneByte);
-        } catch (IOException e) {
-          hasErrors = true;
-        }
-      }
-
-      @Override public void write(byte[] buffer, int offset, int length) {
-        try {
-          out.write(buffer, offset, length);
-        } catch (IOException e) {
-          hasErrors = true;
-        }
-      }
-
-      @Override public void close() {
-        try {
-          out.close();
-        } catch (IOException e) {
-          hasErrors = true;
-        }
-      }
-
-      @Override public void flush() {
-        try {
-          out.flush();
-        } catch (IOException e) {
-          hasErrors = true;
-        }
-      }
-    }
-  }
-
-  private final class Entry {
-    private final String key;
-
-    /** Lengths of this entry's files. */
-    private final long[] lengths;
-
-    /** True if this entry has ever been published. */
-    private boolean readable;
-
-    /** The ongoing edit or null if this entry is not being edited. */
-    private Editor currentEditor;
-
-    /** The sequence number of the most recently committed edit to this entry. */
-    private long sequenceNumber;
-
-    private Entry(String key) {
-      this.key = key;
-      this.lengths = new long[valueCount];
-    }
-
-    public String getLengths() throws IOException {
-      StringBuilder result = new StringBuilder();
-      for (long size : lengths) {
-        result.append(' ').append(size);
-      }
-      return result.toString();
-    }
-
-    /** Set lengths using decimal numbers like "10123". */
-    private void setLengths(String[] strings) throws IOException {
-      if (strings.length != valueCount) {
-        throw invalidLengths(strings);
-      }
-
-      try {
-        for (int i = 0; i < strings.length; i++) {
-          lengths[i] = Long.parseLong(strings[i]);
-        }
-      } catch (NumberFormatException e) {
-        throw invalidLengths(strings);
-      }
-    }
-
-    private IOException invalidLengths(String[] strings) throws IOException {
-      throw new IOException("unexpected journal line: " + java.util.Arrays.toString(strings));
-    }
-
-    public File getCleanFile(int i) {
-      return new File(directory, key + "." + i);
-    }
-
-    public File getDirtyFile(int i) {
-      return new File(directory, key + "." + i + ".tmp");
-    }
-  }
-}
diff --git a/mobile/android/thirdparty/com/jakewharton/disklrucache/StrictLineReader.java b/mobile/android/thirdparty/com/jakewharton/disklrucache/StrictLineReader.java
deleted file mode 100644
index c90691ce4..000000000
--- a/mobile/android/thirdparty/com/jakewharton/disklrucache/StrictLineReader.java
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jakewharton.disklrucache;
-
-import java.io.ByteArrayOutputStream;
-import java.io.Closeable;
-import java.io.EOFException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.UnsupportedEncodingException;
-import java.nio.charset.Charset;
-
-/**
- * Buffers input from an {@link InputStream} for reading lines.
- *
- * <p>This class is used for buffered reading of lines. For purposes of this class, a line ends
- * with "\n" or "\r\n". End of input is reported by throwing {@code EOFException}. Unterminated
- * line at end of input is invalid and will be ignored, the caller may use {@code
- * hasUnterminatedLine()} to detect it after catching the {@code EOFException}.
- *
- * <p>This class is intended for reading input that strictly consists of lines, such as line-based
- * cache entries or cache journal. Unlike the {@link java.io.BufferedReader} which in conjunction
- * with {@link java.io.InputStreamReader} provides similar functionality, this class uses different
- * end-of-input reporting and a more restrictive definition of a line.
- *
- * <p>This class supports only charsets that encode '\r' and '\n' as a single byte with value 13
- * and 10, respectively, and the representation of no other character contains these values.
- * We currently check in constructor that the charset is one of US-ASCII, UTF-8 and ISO-8859-1.
- * The default charset is US_ASCII.
- */
-class StrictLineReader implements Closeable {
-  private static final byte CR = (byte) '\r';
-  private static final byte LF = (byte) '\n';
-
-  private final InputStream in;
-  private final Charset charset;
-
-  /*
-   * Buffered data is stored in {@code buf}. As long as no exception occurs, 0 <= pos <= end
-   * and the data in the range [pos, end) is buffered for reading. At end of input, if there is
-   * an unterminated line, we set end == -1, otherwise end == pos. If the underlying
-   * {@code InputStream} throws an {@code IOException}, end may remain as either pos or -1.
-   */
-  private byte[] buf;
-  private int pos;
-  private int end;
-
-  /**
-   * Constructs a new {@code LineReader} with the specified charset and the default capacity.
-   *
-   * @param in the {@code InputStream} to read data from.
-   * @param charset the charset used to decode data. Only US-ASCII, UTF-8 and ISO-8859-1 are
-   * supported.
-   * @throws NullPointerException if {@code in} or {@code charset} is null.
-   * @throws IllegalArgumentException if the specified charset is not supported.
-   */
-  public StrictLineReader(InputStream in, Charset charset) {
-    this(in, 8192, charset);
-  }
-
-  /**
-   * Constructs a new {@code LineReader} with the specified capacity and charset.
-   *
-   * @param in the {@code InputStream} to read data from.
-   * @param capacity the capacity of the buffer.
-   * @param charset the charset used to decode data. Only US-ASCII, UTF-8 and ISO-8859-1 are
-   * supported.
-   * @throws NullPointerException if {@code in} or {@code charset} is null.
-   * @throws IllegalArgumentException if {@code capacity} is negative or zero
-   * or the specified charset is not supported.
-   */
-  public StrictLineReader(InputStream in, int capacity, Charset charset) {
-    if (in == null || charset == null) {
-      throw new NullPointerException();
-    }
-    if (capacity < 0) {
-      throw new IllegalArgumentException("capacity <= 0");
-    }
-    if (!(charset.equals(Util.US_ASCII))) {
-      throw new IllegalArgumentException("Unsupported encoding");
-    }
-
-    this.in = in;
-    this.charset = charset;
-    buf = new byte[capacity];
-  }
-
-  /**
-   * Closes the reader by closing the underlying {@code InputStream} and
-   * marking this reader as closed.
-   *
-   * @throws IOException for errors when closing the underlying {@code InputStream}.
-   */
-  public void close() throws IOException {
-    synchronized (in) {
-      if (buf != null) {
-        buf = null;
-        in.close();
-      }
-    }
-  }
-
-  /**
-   * Reads the next line. A line ends with {@code "\n"} or {@code "\r\n"},
-   * this end of line marker is not included in the result.
-   *
-   * @return the next line from the input.
-   * @throws IOException for underlying {@code InputStream} errors.
-   * @throws EOFException for the end of source stream.
-   */
-  public String readLine() throws IOException {
-    synchronized (in) {
-      if (buf == null) {
-        throw new IOException("LineReader is closed");
-      }
-
-      // Read more data if we are at the end of the buffered data.
-      // Though it's an error to read after an exception, we will let {@code fillBuf()}
-      // throw again if that happens; thus we need to handle end == -1 as well as end == pos.
-      if (pos >= end) {
-        fillBuf();
-      }
-      // Try to find LF in the buffered data and return the line if successful.
-      for (int i = pos; i != end; ++i) {
-        if (buf[i] == LF) {
-          int lineEnd = (i != pos && buf[i - 1] == CR) ? i - 1 : i;
-          String res = new String(buf, pos, lineEnd - pos, charset.name());
-          pos = i + 1;
-          return res;
-        }
-      }
-
-      // Let's anticipate up to 80 characters on top of those already read.
-      ByteArrayOutputStream out = new ByteArrayOutputStream(end - pos + 80) {
-        @Override
-        public String toString() {
-          int length = (count > 0 && buf[count - 1] == CR) ? count - 1 : count;
-          try {
-            return new String(buf, 0, length, charset.name());
-          } catch (UnsupportedEncodingException e) {
-            throw new AssertionError(e); // Since we control the charset this will never happen.
-          }
-        }
-      };
-
-      while (true) {
-        out.write(buf, pos, end - pos);
-        // Mark unterminated line in case fillBuf throws EOFException or IOException.
-        end = -1;
-        fillBuf();
-        // Try to find LF in the buffered data and return the line if successful.
-        for (int i = pos; i != end; ++i) {
-          if (buf[i] == LF) {
-            if (i != pos) {
-              out.write(buf, pos, i - pos);
-            }
-            pos = i + 1;
-            return out.toString();
-          }
-        }
-      }
-    }
-  }
-
-  public boolean hasUnterminatedLine() {
-    return end == -1;
-  }
-
-  /**
-   * Reads new input data into the buffer. Call only with pos == end or end == -1,
-   * depending on the desired outcome if the function throws.
-   */
-  private void fillBuf() throws IOException {
-    int result = in.read(buf, 0, buf.length);
-    if (result == -1) {
-      throw new EOFException();
-    }
-    pos = 0;
-    end = result;
-  }
-}
-
diff --git a/mobile/android/thirdparty/com/jakewharton/disklrucache/Util.java b/mobile/android/thirdparty/com/jakewharton/disklrucache/Util.java
deleted file mode 100644
index 0a7dba9bc..000000000
--- a/mobile/android/thirdparty/com/jakewharton/disklrucache/Util.java
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jakewharton.disklrucache;
-
-import java.io.Closeable;
-import java.io.File;
-import java.io.IOException;
-import java.io.Reader;
-import java.io.StringWriter;
-import java.nio.charset.Charset;
-
-/** Junk drawer of utility methods. */
-final class Util {
-  static final Charset US_ASCII = Charset.forName("US-ASCII");
-  static final Charset UTF_8 = Charset.forName("UTF-8");
-
-  private Util() {
-  }
-
-  static String readFully(Reader reader) throws IOException {
-    try {
-      StringWriter writer = new StringWriter();
-      char[] buffer = new char[1024];
-      int count;
-      while ((count = reader.read(buffer)) != -1) {
-        writer.write(buffer, 0, count);
-      }
-      return writer.toString();
-    } finally {
-      reader.close();
-    }
-  }
-
-  /**
-   * Deletes the contents of {@code dir}. Throws an IOException if any file
-   * could not be deleted, or if {@code dir} is not a readable directory.
-   */
-  static void deleteContents(File dir) throws IOException {
-    File[] files = dir.listFiles();
-    if (files == null) {
-      throw new IOException("not a readable directory: " + dir);
-    }
-    for (File file : files) {
-      if (file.isDirectory()) {
-        deleteContents(file);
-      }
-      if (!file.delete()) {
-        throw new IOException("failed to delete file: " + file);
-      }
-    }
-  }
-
-  static void closeQuietly(/*Auto*/Closeable closeable) {
-    if (closeable != null) {
-      try {
-        closeable.close();
-      } catch (RuntimeException rethrown) {
-        throw rethrown;
-      } catch (Exception ignored) {
-      }
-    }
-  }
-}