Handle app custom icon via aura::Window property.

extensions/browser/app_window/app_window_registry.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 "extensions/browser/app_window/app_window_registry.h"
 
 #include <string>
 #include <vector>
 
 #include "base/strings/stringprintf.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/app_window/app_window.h"
 #include "extensions/browser/app_window/native_app_window.h"
 #include "extensions/browser/extensions_browser_client.h"
 #include "extensions/common/extension.h"
 
 namespace extensions {
 
 void AppWindowRegistry::Observer::OnAppWindowAdded(AppWindow* app_window) {
 }
 
-void AppWindowRegistry::Observer::OnAppWindowIconChanged(
-    AppWindow* app_window) {
-}
-
 void AppWindowRegistry::Observer::OnAppWindowRemoved(AppWindow* app_window) {
 }
 
 void AppWindowRegistry::Observer::OnAppWindowHidden(AppWindow* app_window) {
 }
 
 void AppWindowRegistry::Observer::OnAppWindowShown(AppWindow* app_window,
                                                    bool was_shown) {
 }
 
@@ skipping 16 matching lines @@
 AppWindowRegistry* AppWindowRegistry::Get(content::BrowserContext* context) {
   return Factory::GetForBrowserContext(context, true /* create */);
 }
 
 void AppWindowRegistry::AddAppWindow(AppWindow* app_window) {
   BringToFront(app_window);
   for (auto& observer : observers_)
     observer.OnAppWindowAdded(app_window);
 }
 
-void AppWindowRegistry::AppWindowIconChanged(AppWindow* app_window) {
-  AddAppWindowToList(app_window);
-  for (auto& observer : observers_)
-    observer.OnAppWindowIconChanged(app_window);
-}
-
 void AppWindowRegistry::AppWindowActivated(AppWindow* app_window) {
   BringToFront(app_window);
   for (auto& observer : observers_)
     observer.OnAppWindowActivated(app_window);
 }
 
 void AppWindowRegistry::AppWindowHidden(AppWindow* app_window) {
   for (auto& observer : observers_)
     observer.OnAppWindowHidden(app_window);
 }
@@ skipping 185 matching lines @@
 bool AppWindowRegistry::Factory::ServiceIsNULLWhileTesting() const {
   return false;
 }
 
 content::BrowserContext* AppWindowRegistry::Factory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
 }
 
 }  // namespace extensions