cc: Remove all blimp code from cc.

cc/layers/layer_sticky_position_constraint.h

Index: cc/layers/layer_sticky_position_constraint.h
diff --git a/cc/layers/layer_sticky_position_constraint.h b/cc/layers/layer_sticky_position_constraint.h
index 51a4da0c0b2853b00aded94e833f2dcfcf3f6b28..3f43bc7751ab614b2c12b25c18d73a71cd308012 100644
--- a/cc/layers/layer_sticky_position_constraint.h
+++ b/cc/layers/layer_sticky_position_constraint.h
@@ -11,10 +11,6 @@
 
 namespace cc {
 
-namespace proto {
-class LayerStickyPositionConstraint;
-}
-
 struct CC_EXPORT LayerStickyPositionConstraint {
   LayerStickyPositionConstraint();
   LayerStickyPositionConstraint(const LayerStickyPositionConstraint& other);
@@ -48,9 +44,6 @@ struct CC_EXPORT LayerStickyPositionConstraint {
   // block boundary.
   gfx::Rect scroll_container_relative_containing_block_rect;
 
-  void ToProtobuf(proto::LayerStickyPositionConstraint* proto) const;
-  void FromProtobuf(const proto::LayerStickyPositionConstraint& proto);
-
   bool operator==(const LayerStickyPositionConstraint&) const;
   bool operator!=(const LayerStickyPositionConstraint&) const;
 };