Migrate drag&drop code in test_shell to new WebKit API

webkit/tools/test_shell/drop_delegate.cc

Index: webkit/tools/test_shell/drop_delegate.cc
diff --git a/webkit/tools/test_shell/drop_delegate.cc b/webkit/tools/test_shell/drop_delegate.cc
index 4f577043536efe98ac10487fb77c072d01ba3842..aff7116e7a37f40e704dbe926c295cdd8a64d9df 100644
--- a/webkit/tools/test_shell/drop_delegate.cc
+++ b/webkit/tools/test_shell/drop_delegate.cc
@@ -32,7 +32,8 @@ DWORD TestDropDelegate::OnDragEnter(IDataObject* data_object,
       drop_data.ToDragData(),
       WebPoint(client_pt.x, client_pt.y),
       WebPoint(cursor_position.x, cursor_position.y),
-      WebDragOperationCopy);
+      WebDragOperationCopy,
+      0);
   // TODO(snej): Pass the real drag operation instead
   return op ? DROPEFFECT_COPY : DROPEFFECT_NONE;
   // TODO(snej): Return the real drop effect constant matching 'op'
@@ -47,7 +48,8 @@ DWORD TestDropDelegate::OnDragOver(IDataObject* data_object,
   WebDragOperation op = webview_->dragTargetDragOver(
       WebPoint(client_pt.x, client_pt.y),
       WebPoint(cursor_position.x, cursor_position.y),
-      WebDragOperationCopy);
+      WebDragOperationCopy,
+      0);
   // TODO(snej): Pass the real drag operation instead
   return op ? DROPEFFECT_COPY : DROPEFFECT_NONE;
   // TODO(snej): Return the real drop effect constant matching 'op'
@@ -65,7 +67,8 @@ DWORD TestDropDelegate::OnDrop(IDataObject* data_object,
   ScreenToClient(GetHWND(), &client_pt);
   webview_->dragTargetDrop(
       WebPoint(client_pt.x, client_pt.y),
-      WebPoint(cursor_position.x, cursor_position.y));
+      WebPoint(cursor_position.x, cursor_position.y),
+      0);
 
   // webkit win port always returns DROPEFFECT_NONE
   return DROPEFFECT_NONE;