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

ui/app_list/views/start_page_view.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/app_list/views/start_page_view.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_item.h"
 #include "ui/app_list/app_list_model.h"
@@ skipping 299 matching lines @@
 }
 
 void StartPageView::UpdateCustomPageClickzoneVisibility() {
   // This can get called before InitWidgets(), so we cannot guarantee that
   // custom_page_clickzone_ will not be null.
   views::Widget* custom_page_clickzone =
       app_list_main_view_->GetCustomPageClickzone();
   if (!custom_page_clickzone)
     return;
 
-  if (app_list_main_view_->contents_view()->ShouldShowCustomPageClickzone()) {
+  if (app_list_main_view_->ShouldShowCustomLauncherPage() &&
+      app_list_main_view_->contents_view()->IsStateActive(
+          AppListModel::STATE_START)) {
     custom_page_clickzone->ShowInactive();
     return;
   }
 
   custom_page_clickzone->Hide();
 }
 
 TileItemView* StartPageView::GetTileItemView(size_t index) {
   return tiles_container_->GetTileItemView(index);
 }
 
 }  // namespace app_list