Improve sync object related command handling.

gpu/command_buffer/build_gles2_cmd_buffer.py

 #!/usr/bin/env python
 # 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.
 
 """code generator for GLES2 command buffers."""
 
 import itertools
 import os
 import os.path
@@ skipping 2852 matching lines @@
     'impl_func': False,
     'client_test': False,
   },
   'EnableVertexAttribArray': {
     'decoder_func': 'DoEnableVertexAttribArray',
     'impl_decl': False,
   },
   'FenceSync': {
     'type': 'Create',
     'client_test': False,
+    'decoder_func': 'DoFenceSync',
     'unsafe': True,
     'trace_level': 1,
   },
   'Finish': {
     'impl_func': False,
     'client_test': False,
     'decoder_func': 'DoFinish',
     'defer_reads': True,
     'trace_level': 1,
   },
@@ skipping 1964 matching lines @@
               'offset': offset,
             })
         offset += _SIZE_OF_UINT32
     f.write("\n")
 
   def WriteHandlerImplementation(self, func, f):
     """Writes the handler implementation for this command."""
     if func.IsUnsafe() and func.GetInfo('id_mapping'):
       code_no_gen = """  if (!group_->Get%(type)sServiceId(
         %(var)s, &%(service_var)s)) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, "%(func)s", "invalid %(var)s id");
+    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "%(func)s", "invalid %(var)s id");
     return error::kNoError;
   }
 """
       code_gen = """  if (!group_->Get%(type)sServiceId(
         %(var)s, &%(service_var)s)) {
     if (!group_->bind_generates_resource()) {
       LOCAL_SET_GL_ERROR(
           GL_INVALID_OPERATION, "%(func)s", "invalid %(var)s id");
       return error::kNoError;
     }
@@ skipping 6655 matching lines @@
   Format(gen.generated_cpp_filenames)
 
   if gen.errors > 0:
     print "%d errors" % gen.errors
     return 1
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))