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

chrome/browser/ui/app_list/search/search_controller.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/search/search_controller.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/search/app_search_provider.h"
 #include "chrome/browser/ui/app_list/search/chrome_search_result.h"
 #include "chrome/browser/ui/app_list/search/history.h"
 #include "chrome/browser/ui/app_list/search/history_factory.h"
 #include "chrome/browser/ui/app_list/search/omnibox_provider.h"
 #include "chrome/browser/ui/app_list/search/people/people_provider.h"
 #include "chrome/browser/ui/app_list/search/search_provider.h"
 #include "chrome/browser/ui/app_list/search/webstore/webstore_provider.h"
+#include "chrome/browser/ui/app_list/start_page_service.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/user_metrics.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/app_list/search_box_model.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace {
   const char kAppListSearchResultOpenTypeHistogram[] =
@@ skipping 11 matching lines @@
     list_controller_(list_controller),
     dispatching_query_(false),
     mixer_(new Mixer(results)),
     history_(HistoryFactory::GetForBrowserContext(profile)) {
   Init();
 }
 
 SearchController::~SearchController() {}
 
 void SearchController::Init() {
+  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
   search_box_->SetHintText(
       l10n_util::GetStringUTF16(IDS_SEARCH_BOX_HINT));
-  search_box_->SetIcon(*ui::ResourceBundle::GetSharedInstance().
-      GetImageSkiaNamed(IDR_OMNIBOX_SEARCH));
+  search_box_->SetIcon(*bundle.GetImageSkiaNamed(IDR_OMNIBOX_SEARCH));
+  if (StartPageService::Get(profile_)) {
+    search_box_->SetSpeechRecognitionButton(
+        scoped_ptr<SearchBoxModel::ToggleButtonProperty>(
+            new SearchBoxModel::ToggleButtonProperty(
+                // Right now provides the same image for both state.
+                // TODO(mukai, jennschen): Replace them by the real images.
+                *bundle.GetImageSkiaNamed(IDR_OMNIBOX_MIC_SEARCH),
+                *bundle.GetImageSkiaNamed(IDR_OMNIBOX_MIC_SEARCH),
+                l10n_util::GetStringUTF16(
+                    IDS_APP_LIST_START_SPEECH_RECOGNITION),
+                l10n_util::GetStringUTF16(
+                    IDS_APP_LIST_STOP_SPEECH_RECOGNITION))));
+  }
 
   mixer_->Init();
 
   AddProvider(Mixer::MAIN_GROUP, scoped_ptr<SearchProvider>(
       new AppSearchProvider(profile_, list_controller_)).Pass());
   AddProvider(Mixer::OMNIBOX_GROUP, scoped_ptr<SearchProvider>(
       new OmniboxProvider(profile_)).Pass());
   AddProvider(Mixer::WEBSTORE_GROUP, scoped_ptr<SearchProvider>(
       new WebstoreProvider(profile_, list_controller_)).Pass());
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
@@ skipping 78 matching lines @@
   KnownResults known_results;
   if (history_ && history_->IsReady()) {
     history_->GetKnownResults(UTF16ToUTF8(search_box_->text()))
         ->swap(known_results);
   }
 
   mixer_->MixAndPublish(known_results);
 }
 
 }  // namespace app_list