WebKit MediaStream cleanup: ASSERT-->DCHECK and ASSERT_NOT_REACHED-->NOTREACHED etc

third_party/WebKit/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 "modules/mediastream/MediaDevices.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/DOMException.h"
@@ skipping 84 matching lines @@
     NavigatorUserMediaErrorCallback* errorCallback = new PromiseErrorCallback(resolver);
 
     Document* document = toDocument(scriptState->getExecutionContext());
     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?"));
 
     MediaErrorState errorState;
     UserMediaRequest* request = UserMediaRequest::create(document, userMedia, options, successCallback, errorCallback, errorState);
     if (!request) {
-        ASSERT(errorState.hadException());
+        DCHECK(errorState.hadException());
         if (errorState.canGenerateException()) {
             errorState.raiseException(exceptionState);
             return exceptionState.reject(scriptState);
         }
         ScriptPromise rejectedPromise = resolver->promise();
         resolver->reject(errorState.createError());
         return rejectedPromise;
     }
 
     String errorMessage;
     if (!request->isSecureContextUse(errorMessage)) {
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError, errorMessage));
     }
 
     request->start();
     return resolver->promise();
 }
 
 } // namespace blink