cc: Change ClipNode::applies_local_clip to a clip_type enum

cc/proto/cc_conversions.cc

Index: cc/proto/cc_conversions.cc
diff --git a/cc/proto/cc_conversions.cc b/cc/proto/cc_conversions.cc
index 92da5634e2ef596a31334f01f237d30b50ef473b..549efbef7cc59350df93ecdcd4311c09784af5af 100644
--- a/cc/proto/cc_conversions.cc
+++ b/cc/proto/cc_conversions.cc
@@ -45,4 +45,28 @@ ScrollbarOrientation ScrollbarOrientationFromProto(
   return ScrollbarOrientation::HORIZONTAL;
 }
 
+proto::ClipNodeData::ClipType ClipNodeTypeToProto(
+    const ClipNode::ClipType& clip_type) {
+  switch (clip_type) {
+    case ClipNode::ClipType::NONE:
+      return proto::ClipNodeData::NONE;
+    case ClipNode::ClipType::APPLIES_LOCAL_CLIP:
+      return proto::ClipNodeData::APPLIES_LOCAL_CLIP;
+  }
+  NOTREACHED();
+  return proto::ClipNodeData::NONE;
+}
+
+ClipNode::ClipType ClipNodeTypeFromProto(
+    const proto::ClipNodeData::ClipType& clip_type) {
+  switch (clip_type) {
+    case proto::ClipNodeData::NONE:
+      return ClipNode::ClipType::NONE;
+    case proto::ClipNodeData::APPLIES_LOCAL_CLIP:
+      return ClipNode::ClipType::APPLIES_LOCAL_CLIP;
+  }
+  NOTREACHED();
+  return ClipNode::ClipType::NONE;
+}
+
 }  // namespace cc