Propagate drag-and-drop key modifiers to WebView's guest renderer.

third_party/WebKit/Source/core/clipboard/DataObject.cpp

 /*
  * Copyright (c) 2008, 2009, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 279 matching lines @@
 
     if (!data.filesystemId().isNull())
         DraggedIsolatedFileSystem::prepareForDataObject(dataObject, data.filesystemId());
     return dataObject;
 }
 
 WebDragData DataObject::toWebDragData()
 {
     WebDragData data;
     data.initialize();
+    data.setModifierKeyState(m_modifiers);
     WebVector<WebDragData::Item> itemList(length());
 
     for (size_t i = 0; i < length(); ++i) {
         DataObjectItem* originalItem = item(i);
         WebDragData::Item item;
         if (originalItem->kind() == DataObjectItem::StringKind) {
             item.storageType = WebDragData::Item::StorageTypeString;
             item.stringType = originalItem->type();
             item.stringData = originalItem->getAsString();
         } else if (originalItem->kind() == DataObjectItem::FileKind) {
@@ skipping 29 matching lines @@
         }
         item.title = originalItem->title();
         item.baseURL = originalItem->baseURL();
         itemList[i] = item;
     }
     data.swapItems(itemList);
     return data;
 }
 
 } // namespace blink