Notify launcher page with onTransitionChanged event

athena/home/app_list_view_delegate.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 "athena/home/app_list_view_delegate.h"
 
 #include <string>
 #include <vector>
 
 #include "athena/home/public/app_model_builder.h"
@@ skipping 141 matching lines @@
   logo_image->SetHorizontalAlignment(views::ImageView::CENTER);
   logo_image->SetVerticalAlignment(views::ImageView::CENTER);
   return logo_image;
 }
 
 std::vector<views::View*> AppListViewDelegate::CreateCustomPageWebViews(
     const gfx::Size& size) {
   return std::vector<views::View*>();
 }
 
+void AppListViewDelegate::CustomLauncherPageAnimationChanged(double progress) {
+}
+
 bool AppListViewDelegate::IsSpeechRecognitionEnabled() {
   return false;
 }
 
 const app_list::AppListViewDelegate::Users&
 AppListViewDelegate::GetUsers() const {
   return users_;
 }
 
 bool AppListViewDelegate::ShouldCenterWindow() const {
   return true;
 }
 
 }  // namespace athena