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diff --git a/toolkit/crashreporter/google-breakpad/src/processor/minidump_stackwalk.cc b/toolkit/crashreporter/google-breakpad/src/processor/minidump_stackwalk.cc
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+++ b/toolkit/crashreporter/google-breakpad/src/processor/minidump_stackwalk.cc
@@ -0,0 +1,162 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// minidump_stackwalk.cc: Process a minidump with MinidumpProcessor, printing
+// the results, including stack traces.
+//
+// Author: Mark Mentovai
+
+#include <stdio.h>
+#include <string.h>
+
+#include <string>
+#include <vector>
+
+#include "common/scoped_ptr.h"
+#include "common/using_std_string.h"
+#include "google_breakpad/processor/basic_source_line_resolver.h"
+#include "google_breakpad/processor/minidump.h"
+#include "google_breakpad/processor/minidump_processor.h"
+#include "google_breakpad/processor/process_state.h"
+#include "processor/logging.h"
+#include "processor/simple_symbol_supplier.h"
+#include "processor/stackwalk_common.h"
+
+
+namespace {
+
+using google_breakpad::BasicSourceLineResolver;
+using google_breakpad::Minidump;
+using google_breakpad::MinidumpProcessor;
+using google_breakpad::ProcessState;
+using google_breakpad::SimpleSymbolSupplier;
+using google_breakpad::scoped_ptr;
+
+// Processes |minidump_file| using MinidumpProcessor.  |symbol_path|, if
+// non-empty, is the base directory of a symbol storage area, laid out in
+// the format required by SimpleSymbolSupplier.  If such a storage area
+// is specified, it is made available for use by the MinidumpProcessor.
+//
+// Returns the value of MinidumpProcessor::Process.  If processing succeeds,
+// prints identifying OS and CPU information from the minidump, crash
+// information if the minidump was produced as a result of a crash, and
+// call stacks for each thread contained in the minidump.  All information
+// is printed to stdout.
+bool PrintMinidumpProcess(const string &minidump_file,
+                          const std::vector<string> &symbol_paths,
+                          bool machine_readable,
+                          bool output_stack_contents) {
+  scoped_ptr<SimpleSymbolSupplier> symbol_supplier;
+  if (!symbol_paths.empty()) {
+    // TODO(mmentovai): check existence of symbol_path if specified?
+    symbol_supplier.reset(new SimpleSymbolSupplier(symbol_paths));
+  }
+
+  BasicSourceLineResolver resolver;
+  MinidumpProcessor minidump_processor(symbol_supplier.get(), &resolver);
+
+  // Process the minidump.
+  Minidump dump(minidump_file);
+  if (!dump.Read()) {
+     BPLOG(ERROR) << "Minidump " << dump.path() << " could not be read";
+     return false;
+  }
+  ProcessState process_state;
+  if (minidump_processor.Process(&dump, &process_state) !=
+      google_breakpad::PROCESS_OK) {
+    BPLOG(ERROR) << "MinidumpProcessor::Process failed";
+    return false;
+  }
+
+  if (machine_readable) {
+    PrintProcessStateMachineReadable(process_state);
+  } else {
+    PrintProcessState(process_state, output_stack_contents, &resolver);
+  }
+
+  return true;
+}
+
+void usage(const char *program_name) {
+  fprintf(stderr, "usage: %s [-m|-s] <minidump-file> [symbol-path ...]\n"
+          "    -m : Output in machine-readable format\n"
+          "    -s : Output stack contents\n",
+          program_name);
+}
+
+}  // namespace
+
+int main(int argc, char **argv) {
+  BPLOG_INIT(&argc, &argv);
+
+  if (argc < 2) {
+    usage(argv[0]);
+    return 1;
+  }
+
+  const char *minidump_file;
+  bool machine_readable = false;
+  bool output_stack_contents = false;
+  int symbol_path_arg;
+
+  if (strcmp(argv[1], "-m") == 0) {
+    if (argc < 3) {
+      usage(argv[0]);
+      return 1;
+    }
+
+    machine_readable = true;
+    minidump_file = argv[2];
+    symbol_path_arg = 3;
+  } else if (strcmp(argv[1], "-s") == 0) {
+    if (argc < 3) {
+      usage(argv[0]);
+      return 1;
+    }
+
+    output_stack_contents = true;
+    minidump_file = argv[2];
+    symbol_path_arg = 3;
+  } else {
+    minidump_file = argv[1];
+    symbol_path_arg = 2;
+  }
+
+  // extra arguments are symbol paths
+  std::vector<string> symbol_paths;
+  if (argc > symbol_path_arg) {
+    for (int argi = symbol_path_arg; argi < argc; ++argi)
+      symbol_paths.push_back(argv[argi]);
+  }
+
+  return PrintMinidumpProcess(minidump_file,
+                              symbol_paths,
+                              machine_readable,
+                              output_stack_contents) ? 0 : 1;
+}