Pull in various gpu/command_buffer fixes from chromium

gpu/command_buffer/service/context_state_autogen.h

Index: gpu/command_buffer/service/context_state_autogen.h
diff --git a/gpu/command_buffer/service/context_state_autogen.h b/gpu/command_buffer/service/context_state_autogen.h
index 405addd68f6c0ad6c1683eeef8eabce4722a9272..e2b65bf5d50001c5361ad5619f7dd7858b70aaa6 100644
--- a/gpu/command_buffer/service/context_state_autogen.h
+++ b/gpu/command_buffer/service/context_state_autogen.h
@@ -34,6 +34,8 @@ struct EnableFlags {
   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;
@@ -158,6 +160,12 @@ inline void SetDeviceCapabilityState(GLenum cap, bool enable) {
         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;