GPU process clients can perform a "shallow" finish.

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 1508 matching lines @@
   'Finish': {
     'impl_func': False,
     'client_test': False,
     'decoder_func': 'DoFinish',
     'defer_reads': True,
   },
   'Flush': {
     'impl_func': False,
     'decoder_func': 'DoFlush',
   },
-  'ShallowFlushCHROMIUM': {
-    'impl_func': False,
-    'gen_cmd': False,
-    'extension': True,
-    'chromium': True,
-    'client_test': False,
-  },
   'FramebufferRenderbuffer': {
     'decoder_func': 'DoFramebufferRenderbuffer',
     'gl_test_func': 'glFramebufferRenderbufferEXT',
   },
   'FramebufferTexture2D': {
     'decoder_func': 'DoFramebufferTexture2D',
     'gl_test_func': 'glFramebufferTexture2DEXT',
   },
   'GenerateMipmap': {
     'decoder_func': 'DoGenerateMipmap',
@@ skipping 809 matching lines @@
     'unit_test': False,
     'extension': True,
     'chromium': True,
   },
   'ReleaseTexImage2DCHROMIUM': {
     'decoder_func': 'DoReleaseTexImage2DCHROMIUM',
     'unit_test': False,
     'extension': True,
     'chromium': True,
   },
+  'ShallowFinishCHROMIUM': {
+    'impl_func': False,
+    'gen_cmd': False,
+    'extension': True,
+    'chromium': True,
+    'client_test': False,
+  },
+  'ShallowFlushCHROMIUM': {
+    'impl_func': False,
+    'gen_cmd': False,
+    'extension': True,
+    'chromium': True,
+    'client_test': False,
+  },
   'TraceBeginCHROMIUM': {
     'type': 'Custom',
     'impl_func': False,
     'immediate': False,
     'client_test': False,
     'cmd_args': 'GLuint bucket_id',
     'extension': True,
     'chromium': True,
   },
   'TraceEndCHROMIUM': {
@@ skipping 5409 matching lines @@
     gen.WriteGLES2Header("../GLES2/gl2chromium_autogen.h")
 
   if gen.errors > 0:
     print "%d errors" % gen.errors
     return 1
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))