Check all settings when checking mic and camera access

chrome/browser/media/media_stream_device_permissions.h

+// 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.
+
+#ifndef CHROME_BROWSER_MEDIA_MEDIA_STREAM_DEVICE_PERMISSIONS_H_
+#define CHROME_BROWSER_MEDIA_MEDIA_STREAM_DEVICE_PERMISSIONS_H_
+
+class GURL;
+class Profile;
+
+enum MediaStreamDevicePolicy {
+  POLICY_NOT_SET,
+  ALWAYS_DENY,
+  ALWAYS_ALLOW,
+};
+
+// Returns true if security origin is from internal objects like
+// chrome://URLs, otherwise returns false.
+bool CheckAllowAllMediaStreamContentForOrigin(Profile* profile,
+                                              const GURL& security_origin);
+
+// Get the device policy for |security_origin| and |profile|.
+MediaStreamDevicePolicy GetDevicePolicy(Profile* profile,
+                                        const GURL& security_origin,
+                                        const char* policy_name,
+                                        const char* whitelist_policy_name);
+
+#endif  // CHROME_BROWSER_MEDIA_MEDIA_STREAM_DEVICE_PERMISSIONS_H_