Clean-up refactoring of chrome_content_browser_client to use GetPermissionContext consistently.

chrome/browser/services/gcm/push_messaging_permission_context.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 CHROME_BROWSER_SERVICES_GCM_PUSH_MESSAGING_PERMISSION_CONTEXT_H_
 #define CHROME_BROWSER_SERVICES_GCM_PUSH_MESSAGING_PERMISSION_CONTEXT_H_
 
 #include "chrome/browser/content_settings/permission_context_base.h"
 
 #include "components/content_settings/core/common/content_settings_types.h"
 
 class PermissionRequestID;
 class Profile;
 
 namespace gcm {
 
 // Permission context for push messages.
 class PushMessagingPermissionContext : public PermissionContextBase {
  public:
   explicit PushMessagingPermissionContext(Profile* profile);
   ~PushMessagingPermissionContext() override;
 
   // PermissionContextBase:
   ContentSetting GetPermissionStatus(
       const GURL& requesting_origin,
       const GURL& embedding_origin) const override;
 
+  void CancelPermissionRequest(content::WebContents* web_contents,
+                               const PermissionRequestID& id) override;
+
  protected:
   // PermissionContextBase:
   void DecidePermission(content::WebContents* web_contents,
                         const PermissionRequestID& id,
                         const GURL& requesting_origin,
                         const GURL& embedding_origin,
                         bool user_gesture,
                         const BrowserPermissionCallback& callback) override;
 
  private:
@@ skipping 12 matching lines @@
 
   // Must be the last member, to ensure that it will be
   // destroyed first, which will invalidate weak pointers
   base::WeakPtrFactory<PushMessagingPermissionContext> weak_factory_ui_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(PushMessagingPermissionContext);
 };
 
 }  // namespace gcm
 #endif  // CHROME_BROWSER_SERVICES_GCM_PUSH_MESSAGING_PERMISSION_CONTEXT_H_