Update from https://crrev.com/318214

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 432 matching lines @@
 }
 void GLES2GetShaderSource(GLuint shader,
                           GLsizei bufsize,
                           GLsizei* length,
                           char* source) {
   gles2::GetGLContext()->GetShaderSource(shader, bufsize, length, source);
 }
 const GLubyte* GLES2GetString(GLenum name) {
   return gles2::GetGLContext()->GetString(name);
 }
+void GLES2GetSynciv(GLsync sync,
+                    GLenum pname,
+                    GLsizei bufsize,
+                    GLsizei* length,
+                    GLint* values) {
+  gles2::GetGLContext()->GetSynciv(sync, pname, bufsize, length, values);
+}
 void GLES2GetTexParameterfv(GLenum target, GLenum pname, GLfloat* params) {
   gles2::GetGLContext()->GetTexParameterfv(target, pname, params);
 }
 void GLES2GetTexParameteriv(GLenum target, GLenum pname, GLint* params) {
   gles2::GetGLContext()->GetTexParameteriv(target, pname, params);
 }
 void GLES2GetTransformFeedbackVarying(GLuint program,
                                       GLuint index,
                                       GLsizei bufsize,
                                       GLsizei* length,
@@ skipping 1238 matching lines @@
     },
     {
      "glGetShaderSource",
      reinterpret_cast<GLES2FunctionPointer>(glGetShaderSource),
     },
     {
      "glGetString",
      reinterpret_cast<GLES2FunctionPointer>(glGetString),
     },
     {
+     "glGetSynciv",
+     reinterpret_cast<GLES2FunctionPointer>(glGetSynciv),
+    },
+    {
      "glGetTexParameterfv",
      reinterpret_cast<GLES2FunctionPointer>(glGetTexParameterfv),
     },
     {
      "glGetTexParameteriv",
      reinterpret_cast<GLES2FunctionPointer>(glGetTexParameteriv),
     },
     {
      "glGetTransformFeedbackVarying",
      reinterpret_cast<GLES2FunctionPointer>(glGetTransformFeedbackVarying),
@@ skipping 769 matching lines @@
      reinterpret_cast<GLES2FunctionPointer>(glBlendBarrierKHR),
     },
     {
      NULL,
      NULL,
     },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_