Reintroduce plumbing for user gesture into permission system.

chrome/browser/push_messaging/push_messaging_permission_context.h

 // Copyright 2015 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_PUSH_MESSAGING_PUSH_MESSAGING_PERMISSION_CONTEXT_H_
 #define CHROME_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_PERMISSION_CONTEXT_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "chrome/browser/permissions/permission_context_base.h"
@@ skipping 12 matching lines @@
   ContentSetting GetPermissionStatus(
       const GURL& requesting_origin,
       const GURL& embedding_origin) const 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;
   bool IsRestrictedToSecureOrigins() const override;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(PushMessagingPermissionContextTest,
                            DecidePermission);
   FRIEND_TEST_ALL_PREFIXES(PushMessagingPermissionContextTest,
                            DecidePushPermission);
   FRIEND_TEST_ALL_PREFIXES(PushMessagingPermissionContextTest, InsecureOrigin);
 
   // Used to decide the permission for push, once the permission for
   // Notification has been granted/denied.
   void DecidePushPermission(
       const PermissionRequestID& id,
       const GURL& requesting_origin,
       const GURL& embedding_origin,
       const BrowserPermissionCallback& callback,
       blink::mojom::PermissionStatus notifications_status);
 
   Profile* profile_;
 
   // 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);
 };
 
 #endif  // CHROME_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_PERMISSION_CONTEXT_H_