Improve BindBufferBase/BindBufferRange and a few other commands.

gpu/command_buffer/service/context_group.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 "gpu/command_buffer/service/context_group.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 390 matching lines @@
 
 bool ContextGroup::QueryGLFeatureU(
     GLenum pname, GLint min_required, uint32* v) {
   uint32 value = 0;
   GetIntegerv(pname, &value);
   bool result = CheckGLFeatureU(min_required, &value);
   *v = value;
   return result;
 }
 
+bool ContextGroup::GetBufferServiceId(
+    GLuint client_id, GLuint* service_id) const {
+  Buffer* buffer = buffer_manager_->GetBuffer(client_id);
+  if (!buffer)
+    return false;
+  *service_id = buffer->service_id();
+  return true;
+}
+
 }  // namespace gles2
 }  // namespace gpu