Implement HasPermission() method in PermissionService.

content/public/browser/content_browser_client.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/values.h"
 #include "content/public/browser/certificate_request_result_type.h"
 #include "content/public/browser/desktop_notification_delegate.h"
 #include "content/public/browser/permission_type.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/media_stream_request.h"
+#include "content/public/common/permission_status.mojom.h"
 #include "content/public/common/resource_type.h"
 #include "content/public/common/socket_permission_request.h"
 #include "content/public/common/window_container_type.h"
 #include "net/base/mime_util.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/url_request/url_request_interceptor.h"
 #include "net/url_request/url_request_job_factory.h"
 #include "storage/browser/fileapi/file_system_context.h"
 #include "third_party/WebKit/public/platform/WebNotificationPermission.h"
 #include "ui/base/window_open_disposition.h"
@@ skipping 69 matching lines @@
 class SiteInstance;
 class SpeechRecognitionManagerDelegate;
 class VibrationProvider;
 class WebContents;
 class WebContentsViewDelegate;
 struct MainFunctionParams;
 struct Referrer;
 struct ShowDesktopNotificationHostMsgParams;
 struct WebPreferences;
 
+typedef base::Callback<void(PermissionStatus)> PermissionStatusCallback;
+
 // A mapping from the scheme name to the protocol handler that services its
 // content.
 typedef std::map<
   std::string, linked_ptr<net::URLRequestJobFactory::ProtocolHandler> >
     ProtocolHandlerMap;
 
 // A scoped vector of protocol interceptors.
 typedef ScopedVector<net::URLRequestInterceptor>
     URLRequestInterceptorScopedVector;
 
@@ skipping 323 matching lines @@
 
   virtual void CancelPermissionRequest(PermissionType permission,
                                        WebContents* web_contents,
                                        int bridge_id,
                                        const GURL& requesting_frame) {}
 
   virtual void RegisterPermissionUsage(PermissionType permission,
                                        WebContents* web_contents,
                                        const GURL& frame_url,
                                        const GURL& main_frame_url) {}
+  virtual void HasPermission(

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

nit: could you rename this GetPermissionStatus()?

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

Done.

+      PermissionType permission,
+      BrowserContext* browser_context,
+      const GURL& requesting_origin,
+      const GURL& embedding_origin,
+      const PermissionStatusCallback& result_callback);
 
   // Returns true if the given page is allowed to open a window of the given
   // type. If true is returned, |no_javascript_access| will indicate whether
   // the window that is created should be scriptable/in the same process.
   // This is called on the IO thread.
   virtual bool CanCreateWindow(const GURL& opener_url,
                                const GURL& opener_top_level_frame_url,
                                const GURL& source_origin,
                                WindowContainerType container_type,
                                const GURL& target_url,
@@ skipping 158 matching lines @@
 // camera. Note that this does not query the user. |type| must be
 // MEDIA_DEVICE_AUDIO_CAPTURE or MEDIA_DEVICE_VIDEO_CAPTURE.
 virtual bool CheckMediaAccessPermission(BrowserContext* browser_context,
                                         const GURL& security_origin,
                                         MediaStreamType type);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_