cc/blimp: Proto Cleanup.

cc/animation/element_id.h

Index: cc/animation/element_id.h
diff --git a/cc/animation/element_id.h b/cc/animation/element_id.h
index 1da52a42e19da00f9c9dcf4f4b3b2cc30a573dfb..bca7d6c33e368af2498d270db5fc9a8509359d0c 100644
--- a/cc/animation/element_id.h
+++ b/cc/animation/element_id.h
@@ -24,14 +24,6 @@ class TracedValue;
 
 namespace cc {
 
-namespace proto {
-class ElementId;
-}  // namespace proto
-
-// ------------------------------*IMPORTANT*---------------------------------
-// ElementId has a corresponding proto defined in cc/proto/element_id.proto.
-// When making any changes here, but sure to update the proto.
-
 // An "element" is really an animation target. It retains the name element to be
 // symmetric with ElementAnimations and blink::ElementAnimations, but is not
 // in fact tied to the notion of a blink element. It is also not associated with
@@ -57,9 +49,6 @@ struct CC_EXPORT ElementId {
   void AddToTracedValue(base::trace_event::TracedValue* res) const;
   std::unique_ptr<base::Value> AsValue() const;
 
-  void ToProtobuf(proto::ElementId* proto) const;
-  void FromProtobuf(const proto::ElementId& proto);
-
   // The compositor treats this as an opaque handle and should not know how to
   // interpret these bits. Non-blink cc clients typically operate in terms of
   // layers and may set this value to match the client's layer id.