Improve GLSL integer support

src/gpu/gl/GrGLNoOpInterface.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLNoOpInterface.h"
 #include "SkMutex.h"
 #include "SkString.h"
@@ skipping 376 matching lines @@
 
  GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttrib2fv(GrGLuint indx, const GrGLfloat* values) {
 }
 
  GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttrib3fv(GrGLuint indx, const GrGLfloat* values) {
 }
 
  GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttrib4fv(GrGLuint indx, const GrGLfloat* values) {
 }
 
+GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttribIPointer(GrGLuint indx,
+                                                        GrGLint size,
+                                                        GrGLenum type,
+                                                        GrGLsizei stride,
+                                                        const GrGLvoid* ptr) {
+}
+
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttribPointer(GrGLuint indx,
                                                        GrGLint size,
                                                        GrGLenum type,
                                                        GrGLboolean normalized,
                                                        GrGLsizei stride,
                                                        const GrGLvoid* ptr) {
 }
 
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttribDivisor(GrGLuint index, GrGLuint divisor) {
 }
@@ skipping 266 matching lines @@
     static int gUniLocation = 0;
     return ++gUniLocation;
 }
 
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLInsertEventMarker(GrGLsizei length, const char* marker) {
 }
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLPushGroupMarker(GrGLsizei length  , const char* marker) {
 }
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLPopGroupMarker() {
 }