Added --custom-launcher-page. Adds a page to the experimental launcher.

ui/app_list/test/app_list_test_view_delegate.h

Index: ui/app_list/test/app_list_test_view_delegate.h
diff --git a/ui/app_list/test/app_list_test_view_delegate.h b/ui/app_list/test/app_list_test_view_delegate.h
index 698496c50189a4f2a726b8ff4402615036fcbbba..acf7130b00b88cfab6b5b2ce620a2fb108ecc900 100644
--- a/ui/app_list/test/app_list_test_view_delegate.h
+++ b/ui/app_list/test/app_list_test_view_delegate.h
@@ -77,6 +77,7 @@ class AppListTestViewDelegate : public AppListViewDelegate {
       const base::FilePath& profile_path) OVERRIDE {}
 #if defined(TOOLKIT_VIEWS)
   virtual views::View* CreateStartPageWebView(const gfx::Size& size) OVERRIDE;
+  virtual views::View* CreateCustomPageWebView(const gfx::Size& size) OVERRIDE;
 #endif
   virtual bool IsSpeechRecognitionEnabled() OVERRIDE;
   virtual const Users& GetUsers() const OVERRIDE;