cc: Use a normal texture for background texture.

cc/layers/heads_up_display_layer_impl.cc

Index: cc/layers/heads_up_display_layer_impl.cc
diff --git a/cc/layers/heads_up_display_layer_impl.cc b/cc/layers/heads_up_display_layer_impl.cc
index 0ccd4ed79b6370bb860d6bfbdceddbb9f80616ab..0aebe2491e2160ca4ad66af34d9a8c80621f42b9 100644
--- a/cc/layers/heads_up_display_layer_impl.cc
+++ b/cc/layers/heads_up_display_layer_impl.cc
@@ -97,9 +97,8 @@ bool HeadsUpDisplayLayerImpl::WillDraw(DrawMode draw_mode,
   }
 
   if (!hud_resource_->id()) {
-    hud_resource_->Allocate(content_bounds(),
-                            ResourceProvider::TextureUsageAny,
-                            RGBA_8888);
+    hud_resource_->Allocate(
+        content_bounds(), ResourceProvider::TextureHintImmutable, RGBA_8888);
   }
 
   return LayerImpl::WillDraw(draw_mode, resource_provider);