Update from https://crrev.com/318214

gpu/command_buffer/client/gles2_implementation.h

 // 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.
 
 #ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
 #define GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
 
 #include <GLES2/gl2.h>
 
 #include <list>
@@ skipping 222 matching lines @@
   void GetTransformFeedbackVaryingsCHROMIUMHelper(
       GLuint program, std::vector<int8>* result);
   bool GetTransformFeedbackVaryingHelper(
       GLuint program, GLuint index, GLsizei bufsize, GLsizei* length,
       GLint* size, GLenum* type, char* name);
   bool GetUniformIndicesHelper(
       GLuint program, GLsizei count, const char* const* names, GLuint* indices);
   bool GetActiveUniformsivHelper(
       GLuint program, GLsizei count, const GLuint* indices,
       GLenum pname, GLint* params);
+  bool GetSyncivHelper(
+      GLsync sync, GLenum pname, GLsizei bufsize, GLsizei* length,
+      GLint* values);
 
   void FreeUnusedSharedMemory();
   void FreeEverything();
 
   // ContextSupport implementation.
   void SignalSyncPoint(uint32 sync_point,
                        const base::Closure& callback) override;
   void SignalQuery(uint32 query, const base::Closure& callback) override;
   void SetSurfaceVisible(bool visible) override;
 
@@ skipping 569 matching lines @@
 
 inline bool GLES2Implementation::GetTexParameterivHelper(
     GLenum /* target */, GLenum /* pname */, GLint* /* params */) {
   return false;
 }
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_