Remove getError() and synthesizeGLError() from WebGraphicsContext3D.

third_party/WebKit/Source/modules/webgl/WebGLContextGroup.h

 /*
  * Copyright (C) 2011 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 35 matching lines @@
 public:
     static PassRefPtr<WebGLContextGroup> create();
     ~WebGLContextGroup();
 
     void addContext(WebGLRenderingContextBase*);
     void removeContext(WebGLRenderingContextBase*);
 
     void addObject(WebGLSharedObject*);
     void removeObject(WebGLSharedObject*);
 
+    // TODO(danakj): Make this getAWebGLRenderingContextBase.
     WebGraphicsContext3D* getAWebGraphicsContext3D();
 
     void loseContextGroup(WebGLRenderingContextBase::LostContextMode, WebGLRenderingContextBase::AutoRecoveryMethod);
 
 private:
     friend class WebGLObject;
 
     WebGLContextGroup();
 
     void detachAndRemoveAllObjects();
 
     // FIXME: Oilpan: this object is not on the heap, but keeps untraced
     // pointers to on-heap objects in the two hash sets below.
     // The objects are responsible for managing their
     // registration with WebGLContextGroup, and vice versa, the
     // WebGLContextGroup takes care of detaching the group objects if
     // the set of WebGLRenderingContextBase contexts becomes empty.
     HashSet<RawPtrWillBeUntracedMember<WebGLRenderingContextBase>> m_contexts;
     HashSet<UntracedMember<WebGLSharedObject>> m_groupObjects;
 };
 
 } // namespace blink
 
 #endif // WebGLContextGroup_h