1 files changed, 0 insertions, 143 deletions
diff --git a/browser/components/translation/LanguageDetector.jsm b/browser/components/translation/LanguageDetector.jsm
deleted file mode 100644
index a65d6eda1..000000000
--- a/browser/components/translation/LanguageDetector.jsm
+++ /dev/null
@@ -1,143 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = ["LanguageDetector"];
-
-Components.utils.import("resource://gre/modules/Timer.jsm");
-Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
-
-// Since Emscripten can handle heap growth, but not heap shrinkage, we
-// need to refresh the worker after we've processed a particularly large
-// string in order to prevent unnecessary resident memory growth.
-//
-// These values define the cut-off string length and the idle timeout
-// (in milliseconds) before destroying a worker. Once a string of the
-// maximum size has been processed, the worker is marked for
-// destruction, and is terminated as soon as it has been idle for the
-// given timeout.
-//
-// 1.5MB. This is the approximate string length that forces heap growth
-// for a 2MB heap.
-var LARGE_STRING = 1.5 * 1024 * 1024;
-var IDLE_TIMEOUT = 10 * 1000;
-
-const WORKER_URL = "resource:///modules/translation/cld-worker.js";
-
-var workerManager = {
-  detectionQueue: [],
-
-  detectLanguage(aParams) {
-    return this.workerReady.then(worker => {
-      return new Promise(resolve => {
-        this.detectionQueue.push({resolve});
-        worker.postMessage(aParams);
-      });
-    }).then(result => {
-      // We have our asynchronous result from the worker.
-      //
-      // Determine if our input was large enough to trigger heap growth,
-      // or if we're already waiting to destroy the worker when it's
-      // idle. If so, schedule termination after the idle timeout.
-      if (aParams.text.length >= LARGE_STRING || this._idleTimeout != null)
-        this.flushWorker();
-
-      return result;
-    })
-  },
-
-  _worker: null,
-  _workerReadyPromise: null,
-
-  get workerReady() {
-    if (!this._workerReadyPromise)
-      this._workerReadyPromise = new Promise(resolve => {
-        let worker = new Worker(WORKER_URL);
-        worker.onmessage = (aMsg) => {
-          if (aMsg.data == "ready")
-            resolve(worker);
-          else
-            this.detectionQueue.shift().resolve(aMsg.data);
-        };
-        this._worker = worker;
-      });
-
-    return this._workerReadyPromise;
-  },
-
-  // Holds the ID of the current pending idle cleanup setTimeout.
-  _idleTimeout: null,
-
-  // Schedule the current worker to be terminated after the idle timeout.
-  flushWorker() {
-    if (this._idleTimeout != null)
-      clearTimeout(this._idleTimeout);
-
-    this._idleTimeout = setTimeout(this._flushWorker.bind(this), IDLE_TIMEOUT);
-  },
-
-  // Immediately terminate the worker, as long as there no pending
-  // results. Otherwise, reschedule termination until after the next
-  // idle timeout.
-  _flushWorker() {
-    if (this.detectionQueue.length)
-      this.flushWorker();
-    else {
-      if (this._worker)
-        this._worker.terminate();
-
-      this._worker = null;
-      this._workerReadyPromise = null;
-      this._idleTimeout = null;
-    }
-  },
-};
-
-this.LanguageDetector = {
-  /**
-   * Detect the language of a given string.
-   *
-   * The argument may be either a string containing the text to analyze,
-   * or an object with the following properties:
-   *
-   *  - 'text' The text to analyze.
-   *
-   *  - 'isHTML' (optional) A boolean, indicating whether the text
-   *      should be analyzed as HTML rather than plain text.
-   *
-   *  - 'language' (optional) A string indicating the expected language.
-   *      For text extracted from HTTP documents, this is expected to
-   *      come from the Content-Language header.
-   *
-   *  - 'tld' (optional) A string indicating the top-level domain of the
-   *      document the text was extracted from.
-   *
-   *  - 'encoding' (optional) A string describing the encoding of the
-   *      document the string was extracted from. Note that, regardless
-   *      of the value of this property, the 'text' property must be a
-   *      UTF-16 JavaScript string.
-   *
-   * @returns {Promise<Object>}
-   * @resolves When detection is finished, with a object containing
-   * these fields:
-   *  - 'language' (string with a language code)
-   *  - 'confident' (boolean) Whether the detector is confident of the
-   *      result.
-   *  - 'languages' (array) An array of up to three elements, containing
-   *      the most prevalent languages detected. It contains a
-   *      'languageCode' property, containing the ISO language code of
-   *      the language, and a 'percent' property, describing the
-   *      approximate percentage of the input which is in that language.
-   *      For text of an unknown language, the result may contain an
-   *      entry with the languge code 'un', indicating the percent of
-   *      the text which is unknown.
-   */
-  detectLanguage: function(aParams) {
-    if (typeof aParams == "string")
-      aParams = { text: aParams };
-
-    return workerManager.detectLanguage(aParams);
-  },
-};