Implement RevokePermission() method in PermissionService.

content/browser/permissions/permission_service_impl.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 "content/browser/permissions/permission_service_impl.h"
 
 #include "content/public/browser/content_browser_client.h"
 
 namespace content {
 
@@ skipping 103 matching lines @@
   // If the embedding_origin is empty we'll use |origin| instead.
   GURL embedding_origin = context_->GetEmbeddingOrigin();
 
   callback.Run(GetContentClient()->browser()->GetPermissionStatus(
       PermissionNameToPermissionType(permission),
       context_->GetBrowserContext(),
       GURL(origin),
       embedding_origin.is_empty() ? GURL(origin) : embedding_origin));
 }
 
+void PermissionServiceImpl::RevokePermission(
+    PermissionName permission,
+    const mojo::String& origin,
+    const mojo::Callback<void(PermissionStatus)>& callback) {
+  // If the embedding_origin is empty we'll use |origin| instead.
+  GURL embedding_origin = context_->GetEmbeddingOrigin();
+
+  callback.Run(GetContentClient()->browser()->RevokePermission(
+      PermissionNameToPermissionType(permission),
+      context_->GetBrowserContext(),
+      GURL(origin),
+      embedding_origin.is_empty() ? GURL(origin) : embedding_origin));
+}
+
+
 }  // namespace content