Rework FlushSync to return early if commands have been processed since the last update

gpu/gpu.gyp

 # Copyright (c) 2011 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # These are defined here because we need to build this library twice. Once
     # with extra parameter checking. Once with no parameter checking to be 100%
     # OpenGL ES 2.0 compliant for the conformance tests.
@@ skipping 335 matching lines @@
         'gles2_c_lib',
       ],
       'sources': [
         'command_buffer/client/gles2_demo_c.h',
         'command_buffer/client/gles2_demo_c.c',
         'command_buffer/client/gles2_demo_cc.h',
         'command_buffer/client/gles2_demo_cc.cc',
       ],
     },
     {
-      'target_name': 'pgl',
-      'type': 'static_library',
-      'dependencies': [
-        'command_buffer_client',
-        'gles2_c_lib',
-        '../third_party/npapi/npapi.gyp:npapi',
-      ],
-      'include_dirs': [
-        '..',
-      ],
-      'all_dependent_settings': {
-        'include_dirs': [
-          '../third_party/npapi/bindings',
-        ],
-      },
-      'sources': [
-        'pgl/command_buffer_pepper.cc',
-        'pgl/command_buffer_pepper.h',
-        'pgl/pgl_proc_address.cc',
-        'pgl/pgl.cc',
-        'pgl/pgl.h',
-      ],
-    },
-    {
       'target_name': 'gpu_ipc',
       'type': 'static_library',
       'dependencies': [
         'command_buffer_client',
         'gles2_c_lib',
         '../base/base.gyp:base',
       ],
       'include_dirs': [
         '..',
       ],
@@ skipping 30 matching lines @@
       },
     ],
   ],
 }
 
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 # tab-width:2
 # indent-tabs-mode:nil
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