Hide experimental app list Google logo and custom launcher page when search engine is not Google.

chrome/browser/ui/app_list/start_page_service.h

Index: chrome/browser/ui/app_list/start_page_service.h
diff --git a/chrome/browser/ui/app_list/start_page_service.h b/chrome/browser/ui/app_list/start_page_service.h
index 06b023863ac21b8c98892aadf2cc21963eb945ed..5547d4478b21937f70230fb1be716779f347fcf6 100644
--- a/chrome/browser/ui/app_list/start_page_service.h
+++ b/chrome/browser/ui/app_list/start_page_service.h
@@ -77,6 +77,9 @@ class StartPageService : public KeyedService,
   content::WebContents* GetStartPageContents();
   content::WebContents* GetSpeechRecognitionContents();
 
+  void set_search_engine_is_google(bool search_engine_is_google) {
+    search_engine_is_google_ = search_engine_is_google;
+  }
   Profile* profile() { return profile_; }
   SpeechRecognitionState state() { return state_; }
 
@@ -167,6 +170,7 @@ class StartPageService : public KeyedService,
 #endif
   scoped_ptr<NetworkChangeObserver> network_change_observer_;
 
+  bool search_engine_is_google_;
   scoped_ptr<net::URLFetcher> doodle_fetcher_;
 
   base::WeakPtrFactory<StartPageService> weak_factory_;