athena: Introduce ActivityView.

athena/activity/activity_manager_impl.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/activity/activity_manager_impl.h"
 
 #include <algorithm>
 
 #include "athena/activity/activity_widget_delegate.h"
 #include "athena/activity/public/activity.h"
@@ skipping 73 matching lines @@
   if (find != activities_.end()) {
     FOR_EACH_OBSERVER(
         ActivityManagerObserver, observers_, OnActivityEnding(activity));
     activities_.erase(find);
     views::Widget* widget = GetWidget(activity);
     widget->GetNativeView()->RemoveObserver(this);
     widget->Close();
   }
 }
 
-void ActivityManagerImpl::UpdateActivity(Activity* activity) {
-  views::Widget* widget = GetWidget(activity);
-  widget->UpdateWindowIcon();
-  widget->UpdateWindowTitle();
-}
-
 const ActivityList& ActivityManagerImpl::GetActivityList() {
   return activities_;
 }
 
 Activity* ActivityManagerImpl::GetActivityForWindow(aura::Window* window) {
   struct Matcher {
     Matcher(aura::Window* w) : window(w) {}
     bool operator()(Activity* activity) {
       return activity->GetWindow() == window;
     }
@@ skipping 50 matching lines @@
   return instance;
 }
 
 void ActivityManager::Shutdown() {
   CHECK(instance);
   delete instance;
 }
 
 
 }  // namespace athena