Implement HasPermission() method in PermissionService.

content/public/browser/content_browser_client.cc

 // Copyright (c) 2012 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/public/browser/content_browser_client.h"
 
 #include "base/files/file_path.h"
 #include "ui/gfx/image/image_skia.h"
 #include "url/gurl.h"
 
@@ skipping 219 matching lines @@
 void ContentBrowserClient::RequestPermission(
     PermissionType permission,
     WebContents* web_contents,
     int bridge_id,
     const GURL& requesting_frame,
     bool user_gesture,
     const base::Callback<void(bool)>& result_callback) {
   result_callback.Run(true);
 }
 
+void ContentBrowserClient::HasPermission(
+    PermissionType permission,
+    BrowserContext* browser_context,
+    const GURL& requesting_origin,
+    const GURL& embedding_origin,
+    const PermissionStatusCallback& result_callback) {
+  result_callback.Run(PERMISSION_STATUS_ASK);

[mlamouri (slow - plz ping), 2014/11/24 19:06:01]

nit: PERMISSION_STATUS_DENIED.

[timvolodine, 2014/11/27 17:53:42]

changed to denied, but, RequestPermission above does return "true" by default.
should this not return the default value (which would be ASK)?

+}
+
 bool ContentBrowserClient::CanCreateWindow(
     const GURL& opener_url,
     const GURL& opener_top_level_frame_url,
     const GURL& source_origin,
     WindowContainerType container_type,
     const GURL& target_url,
     const Referrer& referrer,
     WindowOpenDisposition disposition,
     const blink::WebWindowFeatures& features,
     bool user_gesture,
@@ skipping 93 matching lines @@
 #endif
 
 bool ContentBrowserClient::CheckMediaAccessPermission(
     BrowserContext* browser_context,
     const GURL& security_origin,
     MediaStreamType type) {
   return false;
 }
 
 }  // namespace content