Take overscan into account when handling passive grab

ash/host/ash_window_tree_host_x11.cc

 // Copyright 2014 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/host/ash_window_tree_host_x11.h"
 
 #include <X11/extensions/Xfixes.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
@@ skipping 322 matching lines @@
           touch_calibrate_->Calibrate(touchev, bounds());
 #endif  // defined(USE_XI2_MT)
       }
       break;
     }
     default: {
       aura::Window* root_window = window();
       aura::client::ScreenPositionClient* screen_position_client =
           aura::client::GetScreenPositionClient(root_window);
       gfx::Rect local(bounds().size());
-
+      local.Inset(transformer_helper_.GetHostInsets());
       if (screen_position_client && !local.Contains(event->location())) {
         gfx::Point location(event->location());
         // In order to get the correct point in screen coordinates
         // during passive grab, we first need to find on which host window
         // the mouse is on, and find out the screen coordinates on that
         // host window, then convert it back to this host window's coordinate.
         screen_position_client->ConvertHostPointToScreen(root_window,
                                                          &location);
         screen_position_client->ConvertPointFromScreen(root_window, &location);
         ConvertPointToHost(&location);
@@ skipping 55 matching lines @@
                        1);
     }
   }
 }
 
 AshWindowTreeHost* AshWindowTreeHost::Create(const gfx::Rect& initial_bounds) {
   return new AshWindowTreeHostX11(initial_bounds);
 }
 
 }  // namespace ash