Add ES3 commands GetVertexAttribI{u}iv to GPU command buffer.

mojo/gpu/mojo_gles2_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 298 matching lines @@
   void GetUniformfv(GLuint program, GLint location, GLfloat* params) override;
   void GetUniformiv(GLuint program, GLint location, GLint* params) override;
   void GetUniformuiv(GLuint program, GLint location, GLuint* params) override;
   void GetUniformIndices(GLuint program,
                          GLsizei count,
                          const char* const* names,
                          GLuint* indices) override;
   GLint GetUniformLocation(GLuint program, const char* name) override;
   void GetVertexAttribfv(GLuint index, GLenum pname, GLfloat* params) override;
   void GetVertexAttribiv(GLuint index, GLenum pname, GLint* params) override;
+  void GetVertexAttribIiv(GLuint index, GLenum pname, GLint* params) override;
+  void GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint* params) override;
   void GetVertexAttribPointerv(GLuint index,
                                GLenum pname,
                                void** pointer) override;
   void Hint(GLenum target, GLenum mode) override;
   void InvalidateFramebuffer(GLenum target,
                              GLsizei count,
                              const GLenum* attachments) override;
   void InvalidateSubFramebuffer(GLenum target,
                                 GLsizei count,
                                 const GLenum* attachments,
@@ skipping 440 matching lines @@
   void MatrixLoadfCHROMIUM(GLenum matrixMode, const GLfloat* m) override;
   void MatrixLoadIdentityCHROMIUM(GLenum matrixMode) override;
   void BlendBarrierKHR() override;
 
  private:
   MojoGLES2Context context_;
 };
 
 }  // namespace mojo
 #endif  // MOJO_GPU_MOJO_GLES2_IMPL_AUTOGEN_H_