Pull in various gpu/command_buffer fixes from chromium

gpu/command_buffer/service/context_state_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 16 matching lines @@
   bool sample_alpha_to_coverage;
   bool cached_sample_alpha_to_coverage;
   bool sample_coverage;
   bool cached_sample_coverage;
   bool scissor_test;
   bool cached_scissor_test;
   bool stencil_test;
   bool cached_stencil_test;
   bool rasterizer_discard;
   bool cached_rasterizer_discard;
+  bool primitive_restart_fixed_index;
+  bool cached_primitive_restart_fixed_index;
 };
 
 GLfloat blend_color_red;
 GLfloat blend_color_green;
 GLfloat blend_color_blue;
 GLfloat blend_color_alpha;
 GLenum blend_equation_rgb;
 GLenum blend_equation_alpha;
 GLenum blend_source_rgb;
 GLenum blend_dest_rgb;
@@ skipping 104 matching lines @@
       if (enable_flags.cached_stencil_test == enable && !ignore_cached_state)
         return;
       enable_flags.cached_stencil_test = enable;
       break;
     case GL_RASTERIZER_DISCARD:
       if (enable_flags.cached_rasterizer_discard == enable &&
           !ignore_cached_state)
         return;
       enable_flags.cached_rasterizer_discard = enable;
       break;
+    case GL_PRIMITIVE_RESTART_FIXED_INDEX:
+      if (enable_flags.cached_primitive_restart_fixed_index == enable &&
+          !ignore_cached_state)
+        return;
+      enable_flags.cached_primitive_restart_fixed_index = enable;
+      break;
     default:
       NOTREACHED();
       return;
   }
   if (enable)
     glEnable(cap);
   else
     glDisable(cap);
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_AUTOGEN_H_