Replace ASSERT with DCHECK in WebAudio

third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.cpp

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 27 matching lines @@
 
 MediaElementAudioSourceHandler::MediaElementAudioSourceHandler(AudioNode& node, HTMLMediaElement& mediaElement)
     : AudioHandler(NodeTypeMediaElementAudioSource, node, node.context()->sampleRate())
     , m_mediaElement(mediaElement)
     , m_sourceNumberOfChannels(0)
     , m_sourceSampleRate(0)
     , m_passesCurrentSrcCORSAccessCheck(passesCurrentSrcCORSAccessCheck(mediaElement.currentSrc()))
     , m_maybePrintCORSMessage(!m_passesCurrentSrcCORSAccessCheck)
     , m_currentSrcString(mediaElement.currentSrc().getString())
 {
-    ASSERT(isMainThread());
+    DCHECK(isMainThread());
     // Default to stereo. This could change depending on what the media element
     // .src is set to.
     addOutput(2);
 
     initialize();
 }
 
 PassRefPtr<MediaElementAudioSourceHandler> MediaElementAudioSourceHandler::create(AudioNode& node, HTMLMediaElement& mediaElement)
 {
     return adoptRef(new MediaElementAudioSourceHandler(node, mediaElement));
@@ skipping 43 matching lines @@
             BaseAudioContext::AutoLocker contextLocker(context());
 
             // Do any necesssary re-configuration to the output's number of channels.
             output(0).setNumberOfChannels(numberOfChannels);
         }
     }
 }
 
 bool MediaElementAudioSourceHandler::passesCORSAccessCheck()
 {
-    ASSERT(mediaElement());
+    DCHECK(mediaElement());
 
     return (mediaElement()->webMediaPlayer() && mediaElement()->webMediaPlayer()->didPassCORSAccessCheck())
         || m_passesCurrentSrcCORSAccessCheck;
 }
 
 void MediaElementAudioSourceHandler::onCurrentSrcChanged(const KURL& currentSrc)
 {
-    ASSERT(isMainThread());
+    DCHECK(isMainThread());
 
     // Synchronize with process().
     Locker<MediaElementAudioSourceHandler> locker(*this);
 
     m_passesCurrentSrcCORSAccessCheck = passesCurrentSrcCORSAccessCheck(currentSrc);
 
     // Make a note if we need to print a console message and save the |curentSrc| for use in the
     // message.  Need to wait until later to print the message in case HTMLMediaElement allows
     // access.
     m_maybePrintCORSMessage = !m_passesCurrentSrcCORSAccessCheck;
     m_currentSrcString = currentSrc.getString();
 }
 
 bool MediaElementAudioSourceHandler::passesCurrentSrcCORSAccessCheck(const KURL& currentSrc)
 {
-    ASSERT(isMainThread());
+    DCHECK(isMainThread());
     return context()->getSecurityOrigin() && context()->getSecurityOrigin()->canRequest(currentSrc);
 }
 
 void MediaElementAudioSourceHandler::printCORSMessage(const String& message)
 {
     if (context()->getExecutionContext()) {
         context()->getExecutionContext()->addConsoleMessage(
             ConsoleMessage::create(SecurityMessageSource, InfoMessageLevel,
                 "MediaElementAudioSource outputs zeroes due to CORS access restrictions for " + message));
     }
 }
 
 void MediaElementAudioSourceHandler::process(size_t numberOfFrames)
 {
     AudioBus* outputBus = output(0).bus();
 
     // Use a tryLock() to avoid contention in the real-time audio thread.
     // If we fail to acquire the lock then the HTMLMediaElement must be in the middle of
     // reconfiguring its playback engine, so we output silence in this case.
     MutexTryLocker tryLocker(m_processLock);
     if (tryLocker.locked()) {
         if (!mediaElement() || !m_sourceNumberOfChannels || !m_sourceSampleRate) {
             outputBus->zero();
             return;
         }
         AudioSourceProvider& provider = mediaElement()->getAudioSourceProvider();
         // Grab data from the provider so that the element continues to make progress, even if
         // we're going to output silence anyway.
         if (m_multiChannelResampler.get()) {
-            ASSERT(m_sourceSampleRate != sampleRate());
+            DCHECK_NE(m_sourceSampleRate, sampleRate());
             m_multiChannelResampler->process(&provider, outputBus, numberOfFrames);
         } else {
             // Bypass the resampler completely if the source is at the context's sample-rate.
-            ASSERT(m_sourceSampleRate == sampleRate());
+            DCHECK_EQ(m_sourceSampleRate, sampleRate());
             provider.provideInput(outputBus, numberOfFrames);
         }
         // Output silence if we don't have access to the element.
         if (!passesCORSAccessCheck()) {
             if (m_maybePrintCORSMessage) {
                 // Print a CORS message, but just once for each change in the current media
                 // element source, and only if we have a document to print to.
                 m_maybePrintCORSMessage = false;
                 if (context()->getExecutionContext()) {
                     context()->getExecutionContext()->postTask(BLINK_FROM_HERE,
@@ skipping 85 matching lines @@
     mediaElementAudioSourceHandler().lock();
 }
 
 void MediaElementAudioSourceNode::unlock()
 {
     mediaElementAudioSourceHandler().unlock();
 }
 
 } // namespace blink