Changed the GPU Tracer so the category names can be customized.

gpu/command_buffer/client/gles2_interface_stub_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 914 matching lines @@
 void GLES2InterfaceStub::UniformValuebufferCHROMIUM(GLint /* location */,
                                                     GLenum /* target */,
                                                     GLenum /* subscription */) {
 }
 void GLES2InterfaceStub::BindTexImage2DCHROMIUM(GLenum /* target */,
                                                 GLint /* imageId */) {
 }
 void GLES2InterfaceStub::ReleaseTexImage2DCHROMIUM(GLenum /* target */,
                                                    GLint /* imageId */) {
 }
-void GLES2InterfaceStub::TraceBeginCHROMIUM(const char* /* name */) {
+void GLES2InterfaceStub::TraceBeginCHROMIUM(const char* /* category_name */,
+                                            const char* /* trace_name */) {
 }
 void GLES2InterfaceStub::TraceEndCHROMIUM() {
 }
 void GLES2InterfaceStub::AsyncTexSubImage2DCHROMIUM(GLenum /* target */,
                                                     GLint /* level */,
                                                     GLint /* xoffset */,
                                                     GLint /* yoffset */,
                                                     GLsizei /* width */,
                                                     GLsizei /* height */,
                                                     GLenum /* format */,
@@ skipping 46 matching lines @@
     GLfloat /* uv_height */) {
 }
 void GLES2InterfaceStub::MatrixLoadfCHROMIUM(GLenum /* matrixMode */,
                                              const GLfloat* /* m */) {
 }
 void GLES2InterfaceStub::MatrixLoadIdentityCHROMIUM(GLenum /* matrixMode */) {
 }
 void GLES2InterfaceStub::BlendBarrierKHR() {
 }
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_STUB_IMPL_AUTOGEN_H_