Introduces the speech recognition UI to app_list.

ui/app_list/app_list_view_delegate.h

Index: ui/app_list/app_list_view_delegate.h
diff --git a/ui/app_list/app_list_view_delegate.h b/ui/app_list/app_list_view_delegate.h
index 8830e9dfe0d9ec1bd3e347d549fb65ad5fdbd544..235e126b510b3a62a7078facae8d2120769e9943 100644
--- a/ui/app_list/app_list_view_delegate.h
+++ b/ui/app_list/app_list_view_delegate.h
@@ -32,6 +32,7 @@ class AppListModel;
 class AppListViewDelegateObserver;
 class SearchResult;
 class SigninDelegate;
+class SpeechUIModel;
 
 class APP_LIST_EXPORT AppListViewDelegate {
  public:
@@ -72,6 +73,9 @@ class APP_LIST_EXPORT AppListViewDelegate {
   // Gets the SigninDelegate for the app list. Owned by the AppListViewDelegate.
   virtual SigninDelegate* GetSigninDelegate() = 0;
 
+  // Gets the SpeechUIModel for the app list. Owned by the AppListViewDelegate.
+  virtual SpeechUIModel* GetSpeechUI() = 0;
+
   // Gets a path to a shortcut for the given app. Returns asynchronously as the
   // shortcut may not exist yet.
   virtual void GetShortcutPathForApp(