Rename discardFramebufferEXT to discardBackbufferCHROMIUM to avoid collision with real discardFrame…

webkit/gpu/webgraphicscontext3d_in_process_impl.cc

 // Copyright (c) 2012 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 "webkit/gpu/webgraphicscontext3d_in_process_impl.h"
 
 #include <string.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 727 matching lines @@
 
 void WebGraphicsContext3DInProcessImpl::
     setMemoryAllocationChangedCallbackCHROMIUM(
         WebGraphicsMemoryAllocationChangedCallbackCHROMIUM* callback) {
 }
 
 void WebGraphicsContext3DInProcessImpl::discardFramebufferEXT(
     WGC3Denum target, WGC3Dsizei numAttachments, const WGC3Denum* attachments) {
 }
 
-void WebGraphicsContext3DInProcessImpl::ensureFramebufferCHROMIUM() {
+void WebGraphicsContext3DInProcessImpl::discardBackbufferCHROMIUM() {
+}
+
+void WebGraphicsContext3DInProcessImpl::ensureBackbufferCHROMIUM() {
 }
 
 void WebGraphicsContext3DInProcessImpl::copyTextureToParentTextureCHROMIUM(
     WebGLId id, WebGLId id2) {
   NOTIMPLEMENTED();
 }
 
 void WebGraphicsContext3DInProcessImpl::bindUniformLocationCHROMIUM(
     WebGLId program, WGC3Dint location, const WGC3Dchar* uniform) {
   NOTIMPLEMENTED();
@@ skipping 1045 matching lines @@
   if (length > 1) {
     entry->translated_source.reset(new char[length]);
     ShGetObjectCode(compiler, entry->translated_source.get());
   }
   entry->is_valid = true;
   return true;
 }
 
 }  // namespace gpu
 }  // namespace webkit