Add glUniformBlockBinding to GPU command buffer.

gpu/command_buffer/client/gles2_implementation.cc

 // Copyright (c) 2012 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.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
@@ skipping 4631 matching lines @@
                              buffer.shm_id(), buffer.offset());
       offset += buffer.size();
       src += buffer.size();
       size -= buffer.size();
     }
   }
   DCHECK_EQ(total_size.ValueOrDefault(0), offset);
   return true;
 }
 
+void GLES2Implementation::UniformBlockBinding(GLuint program,
+                                              GLuint index,
+                                              GLuint binding) {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glUniformBlockBinding(" << program
+                     << ", " << index << ", " << binding << ")");
+  share_group_->program_info_manager()->UniformBlockBinding(
+      this, program, index, binding);
+  helper_->UniformBlockBinding(program, index, binding);
+  CheckGLError();
+}
+
+
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/client/gles2_implementation_impl_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu