Update from https://crrev.com/320343

gpu/command_buffer/client/gles2_implementation_autogen.h

Index: gpu/command_buffer/client/gles2_implementation_autogen.h
diff --git a/gpu/command_buffer/client/gles2_implementation_autogen.h b/gpu/command_buffer/client/gles2_implementation_autogen.h
index 8e032e432eb0bf59acb6891ad184cf1cee103aa3..24236bcb7c9bd9d2ff2116ca592499d9d6b872b5 100644
--- a/gpu/command_buffer/client/gles2_implementation_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_autogen.h
@@ -200,6 +200,13 @@ void DrawElements(GLenum mode,
                   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;
@@ -800,6 +807,13 @@ void* MapBufferSubDataCHROMIUM(GLuint target,
 
 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,