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

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

Index: third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.cpp
diff --git a/third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.cpp b/third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.cpp
index 9dbf9903e8343c071c805c320d85f6cce7ec86d8..41ee66a975eb05061e32098714f6264dd332ae16 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.cpp
+++ b/third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.cpp
@@ -439,8 +439,10 @@ void WebGLFramebuffer::setAttachmentInternal(GLenum 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();
   }