Implement web speech synthesis.

content/content_browser.gypi

 # 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.
 
 {
   'dependencies': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 139 matching lines @@
     'public/browser/speech_recognition_manager.h',
     'public/browser/speech_recognition_manager_delegate.h',
     'public/browser/speech_recognition_preferences.h',
     'public/browser/speech_recognition_session_config.cc',
     'public/browser/speech_recognition_session_config.h',
     'public/browser/speech_recognition_session_context.cc',
     'public/browser/speech_recognition_session_context.h',
     'public/browser/storage_partition.h',
     'public/browser/trace_controller.h',
     'public/browser/trace_subscriber.h',
+    'public/browser/tts_dispatcher_host.h',
     'public/browser/user_metrics.h',
     'public/browser/utility_process_host.h',
     'public/browser/web_contents.cc',
     'public/browser/web_contents.h',
     'public/browser/web_contents_delegate.cc',
     'public/browser/web_contents_delegate.h',
     'public/browser/web_contents_observer.cc',
     'public/browser/web_contents_observer.h',
     'public/browser/web_contents_user_data.h',
     'public/browser/web_contents_view.h',
@@ skipping 677 matching lines @@
     'browser/speech/input_tag_speech_dispatcher_host.cc',
     'browser/speech/input_tag_speech_dispatcher_host.h',
     'browser/speech/speech_recognition_dispatcher_host.cc',
     'browser/speech/speech_recognition_dispatcher_host.h',
     'browser/speech/speech_recognition_engine.cc',
     'browser/speech/speech_recognition_engine.h',
     'browser/speech/speech_recognition_manager_impl.cc',
     'browser/speech/speech_recognition_manager_impl.h',
     'browser/speech/speech_recognizer.cc',
     'browser/speech/speech_recognizer.h',
+    'browser/speech/tts_dispatcher_host_impl.cc',
+    'browser/speech/tts_dispatcher_host_impl.h',
     'browser/ssl/ssl_cert_error_handler.cc',
     'browser/ssl/ssl_cert_error_handler.h',
     'browser/ssl/ssl_client_auth_handler.cc',
     'browser/ssl/ssl_client_auth_handler.h',
     'browser/ssl/ssl_error_handler.cc',
     'browser/ssl/ssl_error_handler.h',
     'browser/ssl/ssl_host_state.cc',
     'browser/ssl/ssl_host_state.h',
     'browser/ssl/ssl_manager.cc',
     'browser/ssl/ssl_manager.h',
@@ skipping 397 matching lines @@
         ['exclude', '^browser/speech/'],
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }