Move flush id from WebGraphicsContext3DImpl to GLES2Implementation.

gpu/command_buffer/client/gles2_trace_implementation_impl_autogen.h

 // Copyright 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 2207 matching lines @@
 void GLES2TraceImplementation::SwapInterval(GLint interval) {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::SwapInterval");
   gl_->SwapInterval(interval);
 }
 
 void GLES2TraceImplementation::FlushDriverCachesCHROMIUM() {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::FlushDriverCachesCHROMIUM");
   gl_->FlushDriverCachesCHROMIUM();
 }
 
+GLuint GLES2TraceImplementation::GetLastFlushIdCHROMIUM() {
+  TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::GetLastFlushIdCHROMIUM");
+  return gl_->GetLastFlushIdCHROMIUM();
+}
+
 void GLES2TraceImplementation::MatrixLoadfCHROMIUM(GLenum matrixMode,
                                                    const GLfloat* m) {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::MatrixLoadfCHROMIUM");
   gl_->MatrixLoadfCHROMIUM(matrixMode, m);
 }
 
 void GLES2TraceImplementation::MatrixLoadIdentityCHROMIUM(GLenum matrixMode) {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu",
                                 "GLES2Trace::MatrixLoadIdentityCHROMIUM");
   gl_->MatrixLoadIdentityCHROMIUM(matrixMode);
@@ skipping 258 matching lines @@
     GLint location,
     GLboolean transpose,
     const GLfloat* default_value) {
   TRACE_EVENT_BINARY_EFFICIENT0(
       "gpu", "GLES2Trace::UniformMatrix4fvStreamTextureMatrixCHROMIUM");
   gl_->UniformMatrix4fvStreamTextureMatrixCHROMIUM(location, transpose,
                                                    default_value);
 }
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_TRACE_IMPLEMENTATION_IMPL_AUTOGEN_H_