Implement HasPermission() 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 91 matching lines @@
         it.GetCurrentValue()->origin);
   }
 
   pending_requests_.Clear();
 }
 
 void PermissionServiceImpl::HasPermission(
     PermissionName permission,
     const mojo::String& origin,
     const mojo::Callback<void(PermissionStatus)>& callback) {
-  NOTIMPLEMENTED();
+  DCHECK(context_->GetBrowserContext());
+
+  // 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));
 }
 
 }  // namespace content