Remove legacy draggable region code and refactor to share common draggable region code

chrome/renderer/extensions/extension_helper.cc

Index: chrome/renderer/extensions/extension_helper.cc
diff --git a/chrome/renderer/extensions/extension_helper.cc b/chrome/renderer/extensions/extension_helper.cc
index b3ad591ecc84179bd01a2c47e54ed8ee8a879ebb..957360ae18c4845103cb309ad1ab3d3acebd15b3 100644
--- a/chrome/renderer/extensions/extension_helper.cc
+++ b/chrome/renderer/extensions/extension_helper.cc
@@ -265,12 +265,6 @@ void ExtensionHelper::DraggableRegionsChanged(WebKit::WebFrame* frame) {
     extensions::DraggableRegion region;
     region.bounds = webregions[i].bounds;
     region.draggable = webregions[i].draggable;
-
-    // TODO(jianli): to be removed after WebKit patch that changes the draggable
-    // region syntax is landed.
-    region.label = UTF16ToASCII(webregions[i].label);
-    region.clip = webregions[i].clip;
-
     regions.push_back(region);
   }
   Send(new ExtensionHostMsg_UpdateDraggableRegions(routing_id(), regions));