Check all settings when checking mic and camera access

chrome/browser/media/media_capture_devices_dispatcher.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 CHROME_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
 #define CHROME_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 66 matching lines @@
 
   // Method called from WebCapturerDelegate implementations to process access
   // requests. |extension| is set to NULL if request was made from a drive-by
   // page.
   void ProcessMediaAccessRequest(
       content::WebContents* web_contents,
       const content::MediaStreamRequest& request,
       const content::MediaResponseCallback& callback,
       const extensions::Extension* extension);
 
+  // Checks if we have media access permission. Note that this only checks the
+  // settings and does not query the user.
+  bool CheckMediaAccessPermission(content::BrowserContext* browser_context,
+                                  const GURL& security_origin,
+                                  content::MediaStreamType type);
+
   // Helper to get the default devices which can be used by the media request.
   // Uses the first available devices if the default devices are not available.
   // If the return list is empty, it means there is no available device on the
   // OS.
   // Called on the UI thread.
   void GetDefaultDevicesForProfile(Profile* profile,
                                    bool audio,
                                    bool video,
                                    content::MediaStreamDevices* devices);
 
@@ skipping 142 matching lines @@
     int render_frame_id;
     int page_request_id;
   };
   typedef std::list<DesktopCaptureSession> DesktopCaptureSessions;
   DesktopCaptureSessions desktop_capture_sessions_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaCaptureDevicesDispatcher);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_