Fix expando-loss-2.html test

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

 /*
  * 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 1039 matching lines @@
     // wrappers. The enum below defines how the indices in this array
     // are used.
     enum PreservedWrapperIndex {
         PreservedArrayBuffer,
         PreservedElementArrayBuffer,
         PreservedFramebuffer,
         PreservedProgram,
         PreservedRenderbuffer,
         PreservedDefaultVAO,
         PreservedVAO,
+        PreservedTransformFeedback,
     };
     ScopedPersistent<v8::Array> m_miscWrappers;
 
     static void preserveObjectWrapper(ScriptState*, ScriptWrappable* sourceObject, v8::Local<v8::String> hiddenValueName, ScopedPersistent<v8::Array>* persistentCache, uint32_t index, ScriptWrappable* targetObject);
 
     // Called to lazily instantiate the wrapper for the default VAO
     // during calls to bindBuffer and vertexAttribPointer (from
     // JavaScript).
     void maybePreserveDefaultVAOObjectWrapper(ScriptState*);
 
@@ skipping 22 matching lines @@
     static PassOwnPtr<WebGraphicsContext3DProvider> createContextProviderInternal(HTMLCanvasElement*, ScriptState*, WebGLContextAttributes, unsigned);
 };
 
 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, context->is3d(), context.is3d());
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextBase::TextureUnitState);
 
 #endif // WebGLRenderingContextBase_h