Add glTransformFeedbackVaryings to GPU command buffer.

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 658 matching lines @@
                         GLsizei width,
                         GLsizei height,
                         GLsizei depth,
                         GLenum format,
                         GLenum type,
                         const void* pixels) {
   gles2::GetGLContext()->TexSubImage3D(target, level, xoffset, yoffset, zoffset,
                                        width, height, depth, format, type,
                                        pixels);
 }
+void GLES2TransformFeedbackVaryings(GLuint program,
+                                    GLsizei count,
+                                    const char* const* varyings,
+                                    GLenum buffermode) {
+  gles2::GetGLContext()->TransformFeedbackVaryings(program, count, varyings,
+                                                   buffermode);
+}
 void GLES2Uniform1f(GLint location, GLfloat x) {
   gles2::GetGLContext()->Uniform1f(location, x);
 }
 void GLES2Uniform1fv(GLint location, GLsizei count, const GLfloat* v) {
   gles2::GetGLContext()->Uniform1fv(location, count, v);
 }
 void GLES2Uniform1i(GLint location, GLint x) {
   gles2::GetGLContext()->Uniform1i(location, x);
 }
 void GLES2Uniform1iv(GLint location, GLsizei count, const GLint* v) {
@@ skipping 1141 matching lines @@
     },
     {
      "glTexSubImage2D",
      reinterpret_cast<GLES2FunctionPointer>(glTexSubImage2D),
     },
     {
      "glTexSubImage3D",
      reinterpret_cast<GLES2FunctionPointer>(glTexSubImage3D),
     },
     {
+     "glTransformFeedbackVaryings",
+     reinterpret_cast<GLES2FunctionPointer>(glTransformFeedbackVaryings),
+    },
+    {
      "glUniform1f",
      reinterpret_cast<GLES2FunctionPointer>(glUniform1f),
     },
     {
      "glUniform1fv",
      reinterpret_cast<GLES2FunctionPointer>(glUniform1fv),
     },
     {
      "glUniform1i",
      reinterpret_cast<GLES2FunctionPointer>(glUniform1i),
@@ skipping 504 matching lines @@
      reinterpret_cast<GLES2FunctionPointer>(glBlendBarrierKHR),
     },
     {
      NULL,
      NULL,
     },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_