Only enable speech dispatcher on Linux with an explicit switch.

chrome/common/chrome_switches.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 1426 matching lines @@
 // Specifies which password store to use (detect, default, gnome, kwallet).
 const char kPasswordStore[]                 = "password-store";
 #endif
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 // Triggers migration of user data directory to another directory
 // specified as a parameter. The migration is done under singleton lock,
 // and sanity checks are made to avoid corrupting the profile.
 // The browser exits after migration is complete.
 const char kMigrateDataDirForSxS[]          = "migrate-data-dir-for-sxs";
+const char kEnableSpeechDispatcher[] = "enable-speech-dispatcher";

[msw, 2014/03/24 17:11:00]

nit: add a comment briefly explaining what enabling speech dispatcher does, and
why this flag is necessary.

[dmazzoni, 2014/03/24 22:08:42]

Done.

 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
 
 #if defined(OS_MACOSX)
 // Disables the creation and launch of app shims for platform apps.
 const char kDisableAppShims[]               = "disable-app-shims";
 
 // Forcibly disables Lion-style on newer OSes, to allow developers to test the
 // older, SnowLeopard-style fullscreen.
 const char kDisableSystemFullscreenForTesting[] =
     "disable-system-fullscreen-for-testing";
@@ skipping 72 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches