Start pulling away notification logic from ChromeContentBrowserClient.

content/shell/browser/layout_test/layout_test_content_browser_client.h

 // 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.
 
 #ifndef CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_BROWSER_CLIENT_H_
 
 #include "content/public/browser/permission_type.h"
 #include "content/shell/browser/shell_content_browser_client.h"
 
 namespace content {
 
 class LayoutTestNotificationManager;
 
 class LayoutTestContentBrowserClient : public ShellContentBrowserClient {
  public:
   // Gets the current instance.
   static LayoutTestContentBrowserClient* Get();
 
   LayoutTestContentBrowserClient();
   ~LayoutTestContentBrowserClient() override;
 
-  // Will be lazily created when running layout tests.
+  // Implements the PlatformNotificationService interface.
   LayoutTestNotificationManager* GetLayoutTestNotificationManager();
 
   // ContentBrowserClient overrides.
   void RenderProcessWillLaunch(RenderProcessHost* host) override;
   void RequestPermission(
       PermissionType permission,
       WebContents* web_contents,
       int bridge_id,
       const GURL& requesting_frame,
       bool user_gesture,
       const base::Callback<void(bool)>& result_callback) override;
-  blink::WebNotificationPermission CheckDesktopNotificationPermission(
-      const GURL& source_url,
-      ResourceContext* context,
-      int render_process_id) override;
-  void ShowDesktopNotification(
-      const ShowDesktopNotificationHostMsgParams& params,
-      BrowserContext* browser_context,
-      int render_process_id,
-      scoped_ptr<DesktopNotificationDelegate> delegate,
-      base::Closure* cancel_callback) override;
+  PlatformNotificationService* GetPlatformNotificationService() override;
 
  private:
   scoped_ptr<LayoutTestNotificationManager> layout_test_notification_manager_;
 };
 
 }  // content
 
 #endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_BROWSER_CLIENT_H_