Update from https://crrev.com/320343

gpu/command_buffer/client/gles2_implementation_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 182 matching lines @@
 
 void Disable(GLenum cap) override;
 
 void DrawArrays(GLenum mode, GLint first, GLsizei count) override;
 
 void DrawElements(GLenum mode,
                   GLsizei count,
                   GLenum type,
                   const void* indices) override;
 
+void DrawRangeElements(GLenum mode,
+                       GLuint start,
+                       GLuint end,
+                       GLsizei count,
+                       GLenum type,
+                       const void* indices) override;
+
 void Enable(GLenum cap) override;
 
 GLsync FenceSync(GLenum condition, GLbitfield flags) override;
 
 void Finish() override;
 
 void Flush() override;
 
 void FramebufferRenderbuffer(GLenum target,
                              GLenum attachment,
@@ skipping 580 matching lines @@
 
 GLboolean UnmapBufferCHROMIUM(GLuint target) override;
 
 void* MapBufferSubDataCHROMIUM(GLuint target,
                                GLintptr offset,
                                GLsizeiptr size,
                                GLenum access) override;
 
 void UnmapBufferSubDataCHROMIUM(const void* mem) override;
 
+void* MapBufferRange(GLenum target,
+                     GLintptr offset,
+                     GLsizeiptr size,
+                     GLbitfield access) override;
+
+GLboolean UnmapBuffer(GLenum target) override;
+
 void* MapTexSubImage2DCHROMIUM(GLenum target,
                                GLint level,
                                GLint xoffset,
                                GLint yoffset,
                                GLsizei width,
                                GLsizei height,
                                GLenum format,
                                GLenum type,
                                GLenum access) override;
 
@@ skipping 176 matching lines @@
 
 void SwapInterval(GLint interval) override;
 
 void MatrixLoadfCHROMIUM(GLenum matrixMode, const GLfloat* m) override;
 
 void MatrixLoadIdentityCHROMIUM(GLenum matrixMode) override;
 
 void BlendBarrierKHR() override;
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_AUTOGEN_H_