GPU service interprets glFinish as glFlush....

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

 // Copyright (c) 2009 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. DO NOT EDIT!
 
 // It is included by gles2_cmd_decoder.cc
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_
 
@@ skipping 669 matching lines @@
 
 error::Error GLES2DecoderImpl::HandleEnableVertexAttribArray(
     uint32 immediate_data_size, const gles2::EnableVertexAttribArray& c) {
   GLuint index = static_cast<GLuint>(c.index);
   DoEnableVertexAttribArray(index);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleFinish(
     uint32 immediate_data_size, const gles2::Finish& c) {
-  glFinish();
+  glFlush();
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleFlush(
     uint32 immediate_data_size, const gles2::Flush& c) {
   glFlush();
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleFramebufferRenderbuffer(
@@ skipping 2130 matching lines @@
   if (!ValidateGLenumIndexType(type)) {
     SetGLError(GL_INVALID_ENUM);
     return error::kNoError;
   }
   *result_dst = DoGetMaxValueInBuffer(buffer_id, count, type, offset);
   return error::kNoError;
 }
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_