Removal of mediaDevices.getUserMedia from insecure origins

Source/modules/mediastream/MediaDevices.cpp

 // Copyright 2015 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 "config.h"
 #include "modules/mediastream/MediaDevices.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
@@ skipping 87 matching lines @@
     UserMediaController* userMedia = UserMediaController::from(document->frame());
     if (!userMedia)
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError, "No media device controller available; is this a detached window?"));
 
     UserMediaRequest* request = UserMediaRequest::create(document, userMedia, options, successCallback, errorCallback, exceptionState);
     if (!request) {
         ASSERT(exceptionState.hadException());
         return exceptionState.reject(scriptState);
     }
 
+    String errorMessage;
+    if (!document->isPrivilegedContext(errorMessage)) {
+        return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError, errorMessage));
+    }
+
     request->start();
     return resolver->promise();
 }
 
 } // namespace blink