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

chrome/browser/resources/app_list/start_page.js

Index: chrome/browser/resources/app_list/start_page.js
diff --git a/chrome/browser/resources/app_list/start_page.js b/chrome/browser/resources/app_list/start_page.js
index e2055924bb0fb9754be036696958816b3e400720..1d96e3594c9d7c001bb0cc9b59f21efe2c52ceff 100644
--- a/chrome/browser/resources/app_list/start_page.js
+++ b/chrome/browser/resources/app_list/start_page.js
@@ -134,11 +134,16 @@ cr.define('appList.startPage', function() {
     speechManager.toggleSpeechRecognition();
   }
 
+  function onSearchEngineChanged(is_google) {
+    $('logo_container').style.display = is_google ? 'block' : 'none';

[Matt Giuca, 2015/02/10 08:27:05]

Can't we just hide the whole WebContents in this case, rather than sending a
message down to the JS and having it behave differently?

[calamity, 2015/02/13 02:55:24]

That's a good point. Done.

+  }
+
   return {
     initialize: initialize,
     setHotwordEnabled: setHotwordEnabled,
     setNaclArch: setNaclArch,
     onAppListDoodleUpdated: onAppListDoodleUpdated,
+    onSearchEngineChanged: onSearchEngineChanged,
     onAppListShown: onAppListShown,
     onAppListHidden: onAppListHidden,
     toggleSpeechRecognition: toggleSpeechRecognition