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 7a7872b1c3e8eb3b058eb86c02d9eaeef8b0d563..787c2e343931d757eff0a75a9783d4dea6345e95 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_doodle_enabled(bool doodle_enabled) {
+    doodle_enabled_ = doodle_enabled;
+  }
   Profile* profile() { return profile_; }
   SpeechRecognitionState state() { return state_; }
 
@@ -164,6 +167,7 @@ class StartPageService : public KeyedService,
 #endif
   scoped_ptr<NetworkChangeObserver> network_change_observer_;
 
+  bool doodle_enabled_;

[Matt Giuca, 2015/02/17 00:23:34]

Do you think it would be better to call this |search_engine_is_google_|? This
way, the client isn't telling SPS which of its own features are enabled, but
rather, simply telling it a fact about the configuration, which SPS can use to
make decisions.

[calamity, 2015/02/17 06:16:37]

Done.

   scoped_ptr<net::URLFetcher> doodle_fetcher_;
 
   base::WeakPtrFactory<StartPageService> weak_factory_;