Reintroduce plumbing for user gesture into permission system.

content/test/mock_permission_manager.cc

 // Copyright 2016 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 "content/test/mock_permission_manager.h"
 
 #include "third_party/WebKit/public/platform/modules/permissions/permission_status.mojom.h"
 
 namespace content {
 
 MockPermissionManager::MockPermissionManager() {}
 
 MockPermissionManager::~MockPermissionManager() {}
 
 int MockPermissionManager::RequestPermission(
     PermissionType permission,
     RenderFrameHost* render_frame_host,
     const GURL& requesting_origin,
+    bool user_gesture,
     const base::Callback<void(blink::mojom::PermissionStatus)>& callback) {
   return kNoPendingOperation;
 }
 
 int MockPermissionManager::RequestPermissions(
     const std::vector<PermissionType>& permission,
     RenderFrameHost* render_frame_host,
     const GURL& requesting_origin,
+    bool user_gesture,
     const base::Callback<
         void(const std::vector<blink::mojom::PermissionStatus>&)>& callback) {
   return kNoPendingOperation;
 }
 
 int MockPermissionManager::SubscribePermissionStatusChange(
     PermissionType permission,
     const GURL& requesting_origin,
     const GURL& embedding_origin,
     const base::Callback<void(blink::mojom::PermissionStatus)>& callback) {
   // Return a fake subscription_id.
   return 0;
 }
 
 }  // namespace content