Remove WebGraphicsContext3D::getGLES2Interface().

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

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/webgl/CHROMIUMValuebuffer.h"
 
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "modules/webgl/WebGLRenderingContextBase.h"
 
 namespace blink {
@@ skipping 11 matching lines @@
 
 CHROMIUMValuebuffer::CHROMIUMValuebuffer(WebGLRenderingContextBase* ctx)
     : WebGLSharedPlatform3DObject(ctx)
     , m_hasEverBeenBound(false)
 {
     GLuint buffer;
     ctx->contextGL()->GenValuebuffersCHROMIUM(1, &buffer);
     setObject(buffer);
 }
 
-void CHROMIUMValuebuffer::deleteObjectImpl(WebGraphicsContext3D* context3d, gpu::gles2::GLES2Interface* gl)
+void CHROMIUMValuebuffer::deleteObjectImpl(gpu::gles2::GLES2Interface* gl)
 {
     gl->DeleteValuebuffersCHROMIUM(1, &m_object);
     m_object = 0;
 }
 
 } // namespace blink