Enable oilpan in modules/mediasource

Source/modules/mediasource/MediaSource.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 69 matching lines @@
     DEFINE_STATIC_LOCAL(const AtomicString, closed, ("closed", AtomicString::ConstructFromLiteral));
     return closed;
 }
 
 const AtomicString& MediaSource::endedKeyword()
 {
     DEFINE_STATIC_LOCAL(const AtomicString, ended, ("ended", AtomicString::ConstructFromLiteral));
     return ended;
 }
 
-PassRefPtrWillBeRawPtr<MediaSource> MediaSource::create(ExecutionContext* context)
+MediaSource* MediaSource::create(ExecutionContext* context)
 {
-    RefPtrWillBeRawPtr<MediaSource> mediaSource(adoptRefWillBeRefCountedGarbageCollected(new MediaSource(context)));
+    MediaSource* mediaSource(adoptRefCountedGarbageCollected(new MediaSource(context)));
     mediaSource->suspendIfNeeded();
-    return mediaSource.release();
+    return mediaSource;
 }
 
 MediaSource::MediaSource(ExecutionContext* context)
     : ActiveDOMObject(context)
     , m_readyState(closedKeyword())
     , m_asyncEventQueue(GenericEventQueue::create(this))
     , m_attachedElement(0)
     , m_sourceBuffers(SourceBufferList::create(executionContext(), m_asyncEventQueue.get()))
     , m_activeSourceBuffers(SourceBufferList::create(executionContext(), m_asyncEventQueue.get()))
 {
@@ skipping 38 matching lines @@
     Vector<String> codecs = contentType.codecs();
     OwnPtr<WebSourceBuffer> webSourceBuffer = createWebSourceBuffer(contentType.type(), codecs, exceptionState);
 
     if (!webSourceBuffer) {
         ASSERT(exceptionState.code() == NotSupportedError || exceptionState.code() == QuotaExceededError);
         // 2. If type contains a MIME type that is not supported ..., then throw a NotSupportedError exception and abort these steps.
         // 3. If the user agent can't handle any more SourceBuffer objects then throw a QuotaExceededError exception and abort these steps
         return 0;
     }
 
-    RefPtrWillBeRawPtr<SourceBuffer> buffer = SourceBuffer::create(webSourceBuffer.release(), this, m_asyncEventQueue.get());
+    SourceBuffer* buffer = SourceBuffer::create(webSourceBuffer.release(), this, m_asyncEventQueue.get());
     // 6. Add the new object to sourceBuffers and fire a addsourcebuffer on that object.
     m_sourceBuffers->add(buffer);
     m_activeSourceBuffers->add(buffer);
     // 7. Return the new object to the caller.
-    return buffer.get();
+    return buffer;
 }
 
 void MediaSource::removeSourceBuffer(SourceBuffer* buffer, ExceptionState& exceptionState)
 {
     WTF_LOG(Media, "MediaSource::removeSourceBuffer() %p", this);
-    RefPtr<SourceBuffer> protect(buffer);
 
     // 2.2 https://dvcs.w3.org/hg/html-media/raw-file/default/media-source/media-source.html#widl-MediaSource-removeSourceBuffer-void-SourceBuffer-sourceBuffer
 
     // 1. If sourceBuffer specifies an object that is not in sourceBuffers then
     // throw a NotFoundError exception and abort these steps.
     if (!m_sourceBuffers->length() || !m_sourceBuffers->contains(buffer)) {
         exceptionState.throwDOMException(NotFoundError, "The SourceBuffer provided is not contained in this MediaSource.");
         return;
     }
 
@@ skipping 78 matching lines @@
     return EventTargetNames::MediaSource;
 }
 
 ExecutionContext* MediaSource::executionContext() const
 {
     return ActiveDOMObject::executionContext();
 }
 
 void MediaSource::trace(Visitor* visitor)
 {
     visitor->trace(m_asyncEventQueue);

[tkent, 2014/06/29 23:30:42]

This is causing crashes in Debug build. We can't trace off-heap collection of
off-heap items in GenericEventQueue.

     visitor->trace(m_sourceBuffers);
     visitor->trace(m_activeSourceBuffers);
     EventTargetWithInlineData::trace(visitor);
 }
 
 void MediaSource::setWebMediaSourceAndOpen(PassOwnPtr<WebMediaSource> webMediaSource)
 {
     TRACE_EVENT_ASYNC_END0("media", "MediaSource::attachToElement", this);
     ASSERT(webMediaSource);
     ASSERT(!m_webMediaSource);
@@ skipping 265 matching lines @@
 
     m_asyncEventQueue->enqueueEvent(event.release());
 }
 
 URLRegistry& MediaSource::registry() const
 {
     return MediaSourceRegistry::registry();
 }
 
 } // namespace WebCore