Desktop Aura: Allow tab drags out of window.

ash/wm/toplevel_window_event_filter.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/wm/toplevel_window_event_filter.h"
 
 #include "ash/shell.h"
 #include "ash/wm/default_window_resizer.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/resize_shadow_controller.h"
@@ skipping 184 matching lines @@
       }
       break;
     }
     default:
       return ui::GESTURE_STATUS_UNKNOWN;
   }
 
   return ui::GESTURE_STATUS_CONSUMED;
 }
 
-void ToplevelWindowEventFilter::RunMoveLoop(aura::Window* source) {
+void ToplevelWindowEventFilter::RunMoveLoop(aura::Window* source,
+                                            const gfx::Point& drag_offset) {
   DCHECK(!in_move_loop_);  // Can only handle one nested loop at a time.
   in_move_loop_ = true;
   aura::RootWindow* root_window = source->GetRootWindow();
   DCHECK(root_window);
   gfx::Point drag_location;
   if (aura::Env::GetInstance()->is_touch_down()) {
     in_gesture_resize_ = true;
     bool has_point = root_window->gesture_recognizer()->
         GetLastTouchPointForTarget(source, &drag_location);
     DCHECK(has_point);
@@ skipping 85 matching lines @@
 bool ToplevelWindowEventFilter::HandleMouseExited(aura::Window* target,
                                                   ui::LocatedEvent* event) {
   internal::ResizeShadowController* controller =
       Shell::GetInstance()->resize_shadow_controller();
   if (controller)
     controller->HideShadow(target);
   return false;
 }
 
 }  // namespace ash