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

chrome/browser/ui/extensions/shell_window.cc

Index: chrome/browser/ui/extensions/shell_window.cc
diff --git a/chrome/browser/ui/extensions/shell_window.cc b/chrome/browser/ui/extensions/shell_window.cc
index 5851ec146a1233a9b26c2c72328f44bb173a77d1..ebd72f486115efbb5b5de6a17f04fc8f0916c5c2 100644
--- a/chrome/browser/ui/extensions/shell_window.cc
+++ b/chrome/browser/ui/extensions/shell_window.cc
@@ -314,24 +314,7 @@ bool ShellWindow::OnMessageReceived(const IPC::Message& message) {
 
 void ShellWindow::UpdateDraggableRegions(
     const std::vector<extensions::DraggableRegion>& regions) {
-  // Decide if we want to treat it as old syntax by checking labels.
-  // TODO(jianli): to be removed after WebKit patch that changes the draggable
-  // region syntax is landed.
-  bool new_syntax = true;
-  for (std::vector<extensions::DraggableRegion>::const_iterator iter =
-           regions.begin();
-       iter != regions.end(); ++iter) {
-    const extensions::DraggableRegion& region = *iter;
-    if (!region.label.empty() || !region.clip.IsEmpty()) {
-      new_syntax = false;
-      break;
-    }
-  }
-
-  if (new_syntax)
-    native_window_->UpdateDraggableRegions(regions);
-  else
-    native_window_->UpdateLegacyDraggableRegions(regions);
+  native_window_->UpdateDraggableRegions(regions);
 }
 
 void ShellWindow::OnImageLoaded(const gfx::Image& image,