Adds the speech recognition button to the app-list searchbox.

chrome/browser/ui/app_list/start_page_service.cc

 // Copyright 2013 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/ui/app_list/start_page_service.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/memory/singleton.h"
@@ skipping 131 matching lines @@
 StartPageService::~StartPageService() {}
 
 void StartPageService::AddObserver(StartPageObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void StartPageService::RemoveObserver(StartPageObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
+void StartPageService::ToggleSpeechRecognition() {
+  contents_->GetWebUI()->CallJavascriptFunction(
+      "appList.startPage.toggleSpeechRecognition");
+}
+
 void StartPageService::OnSearch(const base::string16& query) {
   FOR_EACH_OBSERVER(StartPageObserver, observers_, OnSearch(query));
 }
 
+void StartPageService::OnSpeechRecognitionStateChanged(bool recognizing) {
+  FOR_EACH_OBSERVER(StartPageObserver,
+                    observers_,
+                    OnSpeechRecognitionStateChanged(recognizing));
+}
+
 void StartPageService::Shutdown() {
   contents_.reset();
 }
 
 }  // namespace app_list