Add glUniformBlockBinding to GPU command buffer.

gpu/command_buffer/client/gles2_implementation_unittest_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 2015 matching lines @@
   for (int ii = 0; ii < 2; ++ii) {
     for (int jj = 0; jj < 4; ++jj) {
       data[ii][jj] = static_cast<GLuint>(ii * 4 + jj);
     }
   }
   expected.cmd.Init(1, 2, &data[0][0]);
   gl_->Uniform4uiv(1, 2, &data[0][0]);
   EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
 }
 
+TEST_F(GLES2ImplementationTest, UniformBlockBinding) {
+  struct Cmds {
+    cmds::UniformBlockBinding cmd;
+  };
+  Cmds expected;
+  expected.cmd.Init(1, 2, 3);
+
+  gl_->UniformBlockBinding(1, 2, 3);
+  EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
+}
+
 TEST_F(GLES2ImplementationTest, UniformMatrix2fv) {
   GLfloat data[2][4] = {{0}};
   struct Cmds {
     cmds::UniformMatrix2fvImmediate cmd;
     GLfloat data[2][4];
   };
 
   Cmds expected;
   for (int ii = 0; ii < 2; ++ii) {
     for (int jj = 0; jj < 4; ++jj) {
@@ skipping 915 matching lines @@
   struct Cmds {
     cmds::MatrixLoadIdentityCHROMIUM cmd;
   };
   Cmds expected;
   expected.cmd.Init(GL_PATH_PROJECTION_CHROMIUM);
 
   gl_->MatrixLoadIdentityCHROMIUM(GL_PATH_PROJECTION_CHROMIUM);
   EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
 }
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_UNITTEST_AUTOGEN_H_