handleDragStatusUpdate 1256 content/renderer/browser_plugin/browser_plugin.cc bool BrowserPlugin::handleDragStatusUpdate(blink::WebDragStatus drag_status,
handleDragStatusUpdate  645 content/shell/renderer/test_runner/TestPlugin.cpp bool TestPlugin::handleDragStatusUpdate(WebDragStatus dragStatus, const WebDragData&, WebDragOperationsMask, const WebPoint& position, const WebPoint& screenPosition)