cc/blimp: Set up the framework for state serialization.

cc/layers/layer.h

Index: cc/layers/layer.h
diff --git a/cc/layers/layer.h b/cc/layers/layer.h
index 02240014219a5b5f9b64516c8651f19fe4aee387..9fa1e18c5eacfc4954630eeebc0dd82bc69919ca 100644
--- a/cc/layers/layer.h
+++ b/cc/layers/layer.h
@@ -389,7 +389,8 @@ class CC_EXPORT Layer : public base::RefCounted<Layer> {
   // a LayerImpl, it pushes the properties to proto::LayerProperties. It is
   // called only on layers that have changed properties. The properties
   // themselves are pushed to proto::LayerProperties.
-  void ToLayerPropertiesProto(proto::LayerUpdate* layer_update);
+  void ToLayerPropertiesProto(proto::LayerUpdate* layer_update,
+                              bool inputs_only);
 
   // Read all property values from the given LayerProperties object and update
   // the current layer. The values for |needs_push_properties_| and
@@ -545,7 +546,8 @@ class CC_EXPORT Layer : public base::RefCounted<Layer> {
   // into proto::LayerProperties. This method is not marked as const
   // as some implementations need reset member fields, similarly to
   // PushPropertiesTo().
-  virtual void LayerSpecificPropertiesToProto(proto::LayerProperties* proto);
+  virtual void LayerSpecificPropertiesToProto(proto::LayerProperties* proto,
+                                              bool inputs_only);
 
   // Deserialize all the necessary properties from proto::LayerProperties into
   // this Layer.