cc: Make visible rect computation aware of pixel-moving filters

cc/proto/property_tree.proto

Index: cc/proto/property_tree.proto
diff --git a/cc/proto/property_tree.proto b/cc/proto/property_tree.proto
index b6098c621cbcbb3d8bcde8c6515526e1a49efee7..c1074be87446598f5700109440d30306b779f63c 100644
--- a/cc/proto/property_tree.proto
+++ b/cc/proto/property_tree.proto
@@ -74,11 +74,12 @@ message StickyPositionNodeData {
 }
 
 // Proto for struct ClipNodeData.
-// NEXT ID: 14
+// NEXT ID: 15
 message ClipNodeData {
   enum ClipType {
     NONE = 1;
     APPLIES_LOCAL_CLIP = 2;
+    EXPANDS_CLIP = 3;
   }
   optional ClipType clip_type = 13;
   optional RectF clip = 1;
@@ -88,6 +89,7 @@ message ClipNodeData {
   optional int64 transform_id = 4;
   optional int64 target_transform_id = 5;
   optional int64 target_effect_id = 12;
+  optional int64 clip_expander_effect_id = 14;
   optional bool applies_local_clip = 6;
   optional bool layer_clipping_uses_only_local_clip = 7;
   optional bool target_is_clipped = 8;