CC: Plumb LayerSettings parameter for cc::Layer construction.

cc/blink/web_layer_impl.cc

Index: cc/blink/web_layer_impl.cc
diff --git a/cc/blink/web_layer_impl.cc b/cc/blink/web_layer_impl.cc
index 8bad92a002e6b9bd13d3aca21f2b800da2ddeded..bfe461639385cf6832cffb384905dea7c0f039d6 100644
--- a/cc/blink/web_layer_impl.cc
+++ b/cc/blink/web_layer_impl.cc
@@ -48,9 +48,12 @@ namespace {
 
 bool g_impl_side_painting_enabled = false;
 
+base::LazyInstance<cc::LayerSettings> g_layer_settings =
+    LAZY_INSTANCE_INITIALIZER;
+
 }  // namespace
 
-WebLayerImpl::WebLayerImpl() : layer_(Layer::Create()) {
+WebLayerImpl::WebLayerImpl() : layer_(Layer::Create(LayerSettings())) {
   web_layer_client_ = nullptr;
   layer_->SetLayerClient(this);
 }
@@ -76,6 +79,16 @@ void WebLayerImpl::SetImplSidePaintingEnabled(bool enabled) {
   g_impl_side_painting_enabled = enabled;
 }
 
+// static
+void WebLayerImpl::SetLayerSettings(const cc::LayerSettings& settings) {
+  g_layer_settings.Get() = settings;
+}
+
+// static
+const cc::LayerSettings& WebLayerImpl::LayerSettings() {
+  return g_layer_settings.Get();
+}
+
 int WebLayerImpl::id() const {
   return layer_->id();
 }