Disable network speech on Chrome OS temporarily.

chrome/browser/extensions/component_loader.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/browser/extensions/component_loader.h"
 
 #include <map>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 532 matching lines @@
       CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableGoogleNowIntegration);
 
   if (enabled && !disabled_via_flag) {
     Add(IDR_GOOGLE_NOW_MANIFEST,
         base::FilePath(FILE_PATH_LITERAL("google_now")));
   }
 #endif
 
 #if defined(GOOGLE_CHROME_BUILD)
+#if !defined(OS_CHROMEOS)  // http://crbug.com/314799
   AddNetworkSpeechSynthesisExtension();
+#endif
 #endif  // defined(GOOGLE_CHROME_BUILD)
 }
 
 void ComponentLoader::UnloadComponent(ComponentExtensionInfo* component) {
   delete component->manifest;
   if (extension_service_->is_ready()) {
     extension_service_->
         RemoveComponentExtension(component->extension_id);
   }
 }
 
 }  // namespace extensions