Support Drag and Drop across displays.

chrome/browser/download/download_util.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Download utility implementation
 
 #define _USE_MATH_DEFINES  // For VC++ to get M_PI. This has to be first.
 
 #include "chrome/browser/download/download_util.h"
 
@@ skipping 346 matching lines @@
                 download->GetFileNameToReportUser().LossyDisplayName());
   }
 
 #if !defined(TOOLKIT_GTK)
 #if defined(USE_AURA)
   aura::RootWindow* root_window = view->GetRootWindow();
   if (!root_window || !aura::client::GetDragDropClient(root_window))
     return;
 
   gfx::Point location = gfx::Screen::GetCursorScreenPoint();
-  aura::client::GetDragDropClient(root_window)->StartDragAndDrop(data, location,
+  aura::client::GetDragDropClient(root_window)->StartDragAndDrop(
+      data,
+      root_window,
+      location,
       ui::DragDropTypes::DRAG_COPY | ui::DragDropTypes::DRAG_LINK);
 #else  // We are on WIN without AURA
   // We cannot use Widget::RunShellDrag on WIN since the |view| is backed by a
   // TabContentsViewWin, not a NativeWidgetWin.
   scoped_refptr<ui::DragSource> drag_source(new ui::DragSource);
   // Run the drag and drop loop
   DWORD effects;
   DoDragDrop(ui::OSExchangeDataProviderWin::GetIDataObject(data),
              drag_source.get(), DROPEFFECT_COPY | DROPEFFECT_LINK, &effects);
 #endif
@@ skipping 97 matching lines @@
   UMA_HISTOGRAM_ENUMERATION(
       "Download.CountsChrome", type, CHROME_DOWNLOAD_COUNT_TYPES_LAST_ENTRY);
 }
 
 void RecordDownloadSource(ChromeDownloadSource source) {
   UMA_HISTOGRAM_ENUMERATION(
       "Download.SourcesChrome", source, CHROME_DOWNLOAD_SOURCE_LAST_ENTRY);
 }
 
 }  // namespace download_util