Notify launcher page with onTransitionChanged event

chrome/browser/ui/app_list/app_list_view_delegate.cc

Index: chrome/browser/ui/app_list/app_list_view_delegate.cc
diff --git a/chrome/browser/ui/app_list/app_list_view_delegate.cc b/chrome/browser/ui/app_list/app_list_view_delegate.cc
index c62666cc116babbc1ed5d7f09be697a07e711aad..58d66e31c10a69774fd077623130e9ea53de8859 100644
--- a/chrome/browser/ui/app_list/app_list_view_delegate.cc
+++ b/chrome/browser/ui/app_list/app_list_view_delegate.cc
@@ -23,6 +23,7 @@
 #include "chrome/browser/ui/app_list/app_list_service.h"
 #include "chrome/browser/ui/app_list/app_list_syncable_service.h"
 #include "chrome/browser/ui/app_list/app_list_syncable_service_factory.h"
+#include "chrome/browser/ui/app_list/launcher_page_event_dispatcher.h"
 #include "chrome/browser/ui/app_list/search/search_controller_factory.h"
 #include "chrome/browser/ui/app_list/search/search_resource_manager.h"
 #include "chrome/browser/ui/app_list/start_page_service.h"
@@ -298,6 +299,13 @@ void AppListViewDelegate::SetUpCustomLauncherPages() {
     page_contents->Initialize(profile_, *it);
     custom_page_contents_.push_back(page_contents);
   }
+
+  // Only the first custom launcher page gets events dispatched to it.
+  if (!custom_launcher_page_urls.empty()) {
+    launcher_page_event_dispatcher_.reset(
+        new app_list::LauncherPageEventDispatcher(
+            profile_, custom_launcher_page_urls[0].host()));
+  }
 }
 
 void AppListViewDelegate::OnHotwordStateChanged(bool started) {
@@ -632,6 +640,10 @@ std::vector<views::View*> AppListViewDelegate::CreateCustomPageWebViews(
 
   return web_views;
 }
+
+void AppListViewDelegate::CustomLauncherPageAnimationChanged(double progress) {
+  launcher_page_event_dispatcher_->ProgressChanged(progress);

[tapted, 2014/11/06 06:05:45]

if (launcher_page_event_dispatcher_) ?

[calamity, 2014/11/07 03:43:29]

Done.

+}
 #endif
 
 bool AppListViewDelegate::IsSpeechRecognitionEnabled() {