[wrapper-tracing] WebGL and friends: Add write barriers

third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.cpp

 /*
  * Copyright (C) 2009 Apple 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 421 matching lines @@
 void WebGLFramebuffer::setAttachmentInternal(GLenum target,
                                              GLenum attachment,
                                              GLenum texTarget,
                                              WebGLTexture* texture,
                                              GLint level,
                                              GLint layer) {
   DCHECK(isBound(target));
   DCHECK(m_object);
   removeAttachmentInternal(target, attachment);
   if (texture && texture->object()) {
-    m_attachments.add(attachment, WebGLTextureAttachment::create(
-                                      texture, texTarget, level, layer));
+    m_attachments.add(
+        attachment, TraceWrapperMember<WebGLAttachment>(
+                        this, WebGLTextureAttachment::create(texture, texTarget,
+                                                             level, layer)));
     drawBuffersIfNecessary(false);
     texture->onAttached();
   }
 }
 
 void WebGLFramebuffer::setAttachmentInternal(GLenum target,
                                              GLenum attachment,
                                              WebGLRenderbuffer* renderbuffer) {
   DCHECK(isBound(target));
   DCHECK(m_object);
   removeAttachmentInternal(target, attachment);
   if (renderbuffer && renderbuffer->object()) {
-    m_attachments.add(attachment,
-                      WebGLRenderbufferAttachment::create(renderbuffer));
+    m_attachments.add(
+        attachment,
+        TraceWrapperMember<WebGLAttachment>(
+            this, WebGLRenderbufferAttachment::create(renderbuffer)));
     drawBuffersIfNecessary(false);
     renderbuffer->onAttached();
   }
 }
 
 void WebGLFramebuffer::removeAttachmentInternal(GLenum target,
                                                 GLenum attachment) {
   DCHECK(isBound(target));
   DCHECK(m_object);
 
@@ skipping 78 matching lines @@
 }
 
 DEFINE_TRACE_WRAPPERS(WebGLFramebuffer) {
   for (const auto& attachment : m_attachments) {
     visitor->traceWrappers(attachment.value->object());
   }
   WebGLContextObject::traceWrappers(visitor);
 }
 
 }  // namespace blink