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

gpu/command_buffer/client/gles2_c_lib_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 992 matching lines @@
                                      GLenum subscription) {
   gles2::GetGLContext()->UniformValuebufferCHROMIUM(location, target,
                                                     subscription);
 }
 void GLES2BindTexImage2DCHROMIUM(GLenum target, GLint imageId) {
   gles2::GetGLContext()->BindTexImage2DCHROMIUM(target, imageId);
 }
 void GLES2ReleaseTexImage2DCHROMIUM(GLenum target, GLint imageId) {
   gles2::GetGLContext()->ReleaseTexImage2DCHROMIUM(target, imageId);
 }
-void GLES2TraceBeginCHROMIUM(const char* name) {
-  gles2::GetGLContext()->TraceBeginCHROMIUM(name);
+void GLES2TraceBeginCHROMIUM(const char* category_name,
+                             const char* trace_name) {
+  gles2::GetGLContext()->TraceBeginCHROMIUM(category_name, trace_name);
 }
 void GLES2TraceEndCHROMIUM() {
   gles2::GetGLContext()->TraceEndCHROMIUM();
 }
 void GLES2AsyncTexSubImage2DCHROMIUM(GLenum target,
                                      GLint level,
                                      GLint xoffset,
                                      GLint yoffset,
                                      GLsizei width,
                                      GLsizei height,
@@ skipping 1057 matching lines @@
      reinterpret_cast<GLES2FunctionPointer>(glBlendBarrierKHR),
     },
     {
      NULL,
      NULL,
     },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_