Use the solid color detection to create solid layers

cc/layers/picture_layer.cc

Index: cc/layers/picture_layer.cc
diff --git a/cc/layers/picture_layer.cc b/cc/layers/picture_layer.cc
index 8b8558ce7f4e59654cd85c257b19755ec04c469e..865be6e2ae09a2606d224d470fde4d423537fae9 100644
--- a/cc/layers/picture_layer.cc
+++ b/cc/layers/picture_layer.cc
@@ -37,6 +37,8 @@ void PictureLayer::PushPropertiesTo(LayerImpl* base_layer) {
   Layer::PushPropertiesTo(base_layer);
   PictureLayerImpl* layer_impl = static_cast<PictureLayerImpl*>(base_layer);
 
+  layer_impl->SetSolidColorState(pile_->IsSolidColor(), pile_->GetSolidColor());
+
   if (layer_impl->bounds().IsEmpty()) {
     // Update may not get called for an empty layer, so resize here instead.
     // Using layer_impl because either bounds() or paint_properties().bounds