gpu: Add ARB_occlusion_query support.

gpu/command_buffer/service/gles2_cmd_validation_implementation_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 715 matching lines @@
   switch (value) {
     case GL_QUERY_RESULT_EXT:
     case GL_QUERY_RESULT_AVAILABLE_EXT:
       return true;
   }
   return false;
 };
 
 bool Validators::QueryTargetValidator::IsValid(const GLenum value) const {
   switch (value) {
+    case GL_SAMPLES_PASSED_ARB:
     case GL_ANY_SAMPLES_PASSED_EXT:
     case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
     case GL_COMMANDS_ISSUED_CHROMIUM:
     case GL_LATENCY_QUERY_CHROMIUM:
     case GL_ASYNC_PIXEL_PACK_COMPLETED_CHROMIUM:
     case GL_COMMANDS_COMPLETED_CHROMIUM:
       return true;
   }
   return false;
 };
@@ skipping 789 matching lines @@
   texture_internal_format_storage.AddValue(GL_COMPRESSED_SRGB8_ETC2);
   texture_internal_format_storage.AddValue(
       GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2);
   texture_internal_format_storage.AddValue(
       GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2);
   texture_internal_format_storage.AddValue(GL_COMPRESSED_RGBA8_ETC2_EAC);
   texture_internal_format_storage.AddValue(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC);
 }
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_IMPLEMENTATION_AUTOGEN_H_