cc: Change ClipNode::applies_local_clip to a clip_type enum

cc/proto/cc_conversions.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/proto/cc_conversions.h"
 
 #include "cc/base/region.h"
 #include "cc/proto/gfx_conversions.h"
 #include "cc/proto/region.pb.h"
 
@@ skipping 27 matching lines @@
         proto) {
   switch (proto) {
     case proto::SolidColorScrollbarLayerProperties::HORIZONTAL:
       return ScrollbarOrientation::HORIZONTAL;
     case proto::SolidColorScrollbarLayerProperties::VERTICAL:
       return ScrollbarOrientation::VERTICAL;
   }
   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