Cancel drag upon screen lock

ash/drag_drop/drag_drop_tracker_unittest.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.
 
 #include "ash/drag_drop/drag_drop_tracker.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 14 matching lines @@
   aura::Window* CreateTestWindow(const gfx::Rect& bounds) {
     static int window_id = 0;
     return CreateTestWindowInShellWithDelegate(
         aura::test::TestWindowDelegate::CreateSelfDestroyingDelegate(),
         window_id++,
         bounds);
   }
 
   static aura::Window* GetTarget(const gfx::Point& location) {
     scoped_ptr<internal::DragDropTracker> tracker(
-        new internal::DragDropTracker(Shell::GetPrimaryRootWindow()));
+        new internal::DragDropTracker(Shell::GetPrimaryRootWindow(),
+                                      NULL));
     ui::MouseEvent e(ui::ET_MOUSE_DRAGGED,
                      location,
                      location,
                      ui::EF_NONE);
     aura::Window* target = tracker->GetTarget(e);
     return target;
   }
 
   static ui::LocatedEvent* ConvertEvent(aura::Window* target,
                                            const ui::MouseEvent& event) {
     scoped_ptr<internal::DragDropTracker> tracker(
-        new internal::DragDropTracker(Shell::GetPrimaryRootWindow()));
+        new internal::DragDropTracker(Shell::GetPrimaryRootWindow(),
+                                      NULL));
     ui::LocatedEvent* converted = tracker->ConvertEvent(target, event);
     return converted;
   }
 };
 
 // TODO(mazda): Remove this once ash/wm/coordinate_conversion.h supports
 // non-X11 platforms.
 #if defined(USE_X11)
 #define MAYBE_GetTarget GetTarget
 #else
@@ skipping 133 matching lines @@
   scoped_ptr<ui::LocatedEvent> converted11(ConvertEvent(window1.get(),
                                                            original11));
   EXPECT_EQ(original11.type(), converted11->type());
   EXPECT_EQ("50,50", converted11->location().ToString());
   EXPECT_EQ("150,150", converted11->root_location().ToString());
   EXPECT_EQ(original11.flags(), converted11->flags());
 }
 
 }  // namespace test
 }  // namespace aura