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

chrome/browser/ui/app_list/app_list_view_delegate.cc

Index: chrome/browser/ui/app_list/app_list_view_delegate.cc
diff --git a/chrome/browser/ui/app_list/app_list_view_delegate.cc b/chrome/browser/ui/app_list/app_list_view_delegate.cc
index e02d1c8fa23a27e5dba36dd98ce43f15c72e71e1..86533761c0913af745e16a1b16af61bcee769b53 100644
--- a/chrome/browser/ui/app_list/app_list_view_delegate.cc
+++ b/chrome/browser/ui/app_list/app_list_view_delegate.cc
@@ -271,6 +271,13 @@ void AppListViewDelegate::OpenFeedback() {
                            chrome::kAppLauncherCategoryTag);
 }
 
+void AppListViewDelegate::ToggleSpeechRecognition() {
+  app_list::StartPageService* service =
+      app_list::StartPageService::Get(profile_);
+  if (service)
+    service->ToggleSpeechRecognition();
+}
+
 void AppListViewDelegate::ShowForProfileByPath(
     const base::FilePath& profile_path) {
   controller_->ShowForProfileByPath(profile_path);
@@ -280,6 +287,10 @@ void AppListViewDelegate::OnSearch(const base::string16& query) {
   model_->search_box()->SetText(query);
 }
 
+void AppListViewDelegate::OnSpeechRecognitionStateChanged(bool recognizing) {
+  model_->search_box()->SetSpeechRecognitionButtonState(recognizing);
+}
+
 void AppListViewDelegate::Observe(
     int type,
     const content::NotificationSource& source,