Pull in various gpu/command_buffer fixes from chromium

gpu/command_buffer/client/client_context_state_impl_autogen.h

Index: gpu/command_buffer/client/client_context_state_impl_autogen.h
diff --git a/gpu/command_buffer/client/client_context_state_impl_autogen.h b/gpu/command_buffer/client/client_context_state_impl_autogen.h
index d0ce722624332d05f79addfeedb175badea0fa73..036f92ccdc958291ac4f37ebf0d7326c821d33ac 100644
--- a/gpu/command_buffer/client/client_context_state_impl_autogen.h
+++ b/gpu/command_buffer/client/client_context_state_impl_autogen.h
@@ -22,7 +22,8 @@ ClientContextState::EnableFlags::EnableFlags()
       sample_coverage(false),
       scissor_test(false),
       stencil_test(false),
-      rasterizer_discard(false) {
+      rasterizer_discard(false),
+      primitive_restart_fixed_index(false) {
 }
 
 bool ClientContextState::SetCapabilityState(GLenum cap,
@@ -90,6 +91,12 @@ bool ClientContextState::SetCapabilityState(GLenum cap,
         enable_flags.rasterizer_discard = enabled;
       }
       return true;
+    case GL_PRIMITIVE_RESTART_FIXED_INDEX:
+      if (enable_flags.primitive_restart_fixed_index != enabled) {
+        *changed = true;
+        enable_flags.primitive_restart_fixed_index = enabled;
+      }
+      return true;
     default:
       return false;
   }
@@ -126,6 +133,9 @@ bool ClientContextState::GetEnabled(GLenum cap, bool* enabled) const {
     case GL_RASTERIZER_DISCARD:
       *enabled = enable_flags.rasterizer_discard;
       return true;
+    case GL_PRIMITIVE_RESTART_FIXED_INDEX:
+      *enabled = enable_flags.primitive_restart_fixed_index;
+      return true;
     default:
       return false;
   }