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

chrome/browser/ui/webui/app_list/start_page_handler.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/webui/app_list/start_page_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 49 matching lines @@
 void StartPageHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback(
       "initialize",
       base::Bind(&StartPageHandler::HandleInitialize, base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "launchApp",
       base::Bind(&StartPageHandler::HandleLaunchApp, base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "search",
       base::Bind(&StartPageHandler::HandleSearch, base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "setSpeechRecognitionState",
+      base::Bind(&StartPageHandler::HandleSpeechRecognition,
+                 base::Unretained(this)));
 }
 
 void StartPageHandler::OnRecommendedAppsChanged() {
   SendRecommendedApps();
 }
 
 void StartPageHandler::SendRecommendedApps() {
   const RecommendedApps::Apps& recommends = recommended_apps_->apps();
 
   base::ListValue recommended_list;
@@ skipping 41 matching lines @@
                           ui::EF_NONE);
 }
 
 void StartPageHandler::HandleSearch(const base::ListValue* args) {
   base::string16 query;
   CHECK(args->GetString(0, &query));
 
   StartPageService::Get(Profile::FromWebUI(web_ui()))->OnSearch(query);
 }
 
+void StartPageHandler::HandleSpeechRecognition(const base::ListValue* args) {
+  bool recognizing;
+  CHECK(args->GetBoolean(0, &recognizing));
+
+  StartPageService* service =
+      StartPageService::Get(Profile::FromWebUI(web_ui()));
+  service->OnSpeechRecognitionStateChanged(recognizing);
+}
+
 }  // namespace app_list