Allow AppSearchProvider to provide recommendations.

chrome/browser/ui/app_list/search/search_controller.h

Index: chrome/browser/ui/app_list/search/search_controller.h
diff --git a/chrome/browser/ui/app_list/search/search_controller.h b/chrome/browser/ui/app_list/search/search_controller.h
index 5809bf13efb413ee3fda6093bc8ee4871a948a60..2f6a0c4b941a9fb7ebc134a8ee3b77eb69cb65a0 100644
--- a/chrome/browser/ui/app_list/search/search_controller.h
+++ b/chrome/browser/ui/app_list/search/search_controller.h
@@ -38,6 +38,7 @@ class SearchController : public SpeechUIModelObserver {
 
   void Init();
 
+  void FetchRecommendations();
   void Start();
   void Stop();
 
@@ -49,6 +50,9 @@ class SearchController : public SpeechUIModelObserver {
  private:
   typedef ScopedVector<SearchProvider> Providers;
 
+  // Starts the timer which will stop all providers if they time out.
+  void InitiateStopTimer();
+
   // Takes ownership of |provider| and associates it with given mixer group.
   void AddProvider(Mixer::GroupId group,
                    scoped_ptr<SearchProvider> provider);