Add glTransformFeedbackVaryings to GPU command buffer.

gpu/command_buffer/client/gles2_trace_implementation_impl_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 998 matching lines @@
                                              GLsizei height,
                                              GLsizei depth,
                                              GLenum format,
                                              GLenum type,
                                              const void* pixels) {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::TexSubImage3D");
   gl_->TexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height,
                      depth, format, type, pixels);
 }
 
+void GLES2TraceImplementation::TransformFeedbackVaryings(
+    GLuint program,
+    GLsizei count,
+    const char* const* varyings,
+    GLenum buffermode) {
+  TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::TransformFeedbackVaryings");
+  gl_->TransformFeedbackVaryings(program, count, varyings, buffermode);
+}
+
 void GLES2TraceImplementation::Uniform1f(GLint location, GLfloat x) {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::Uniform1f");
   gl_->Uniform1f(location, x);
 }
 
 void GLES2TraceImplementation::Uniform1fv(GLint location,
                                           GLsizei count,
                                           const GLfloat* v) {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::Uniform1fv");
   gl_->Uniform1fv(location, count, v);
@@ skipping 902 matching lines @@
                                 "GLES2Trace::MatrixLoadIdentityCHROMIUM");
   gl_->MatrixLoadIdentityCHROMIUM(matrixMode);
 }
 
 void GLES2TraceImplementation::BlendBarrierKHR() {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::BlendBarrierKHR");
   gl_->BlendBarrierKHR();
 }
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_TRACE_IMPLEMENTATION_IMPL_AUTOGEN_H_