Disable touch calibration on external touchscreen.

ui/aura/root_window.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 "ui/aura/root_window.h"
 
 #include <vector>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 66 matching lines @@
     client->ConvertPointToScreen(root_window, &location_in_screen);
     Env::GetInstance()->set_last_mouse_location(location_in_screen);
   } else {
     Env::GetInstance()->set_last_mouse_location(location_in_root);
   }
 }
 
 RootWindowHost* CreateHost(RootWindow* root_window,
                            const RootWindow::CreateParams& params) {
   RootWindowHost* host = params.host ?
-      params.host : RootWindowHost::Create(params.initial_bounds);
+      params.host : RootWindowHost::Create(params.initial_bounds,
+                                           params.is_internal_display);
   host->SetDelegate(root_window);
   return host;
 }
 
 }  // namespace
 
-RootWindow::CreateParams::CreateParams(const gfx::Rect& a_initial_bounds)
+RootWindow::CreateParams::CreateParams(const gfx::Rect& a_initial_bounds,
+                                       bool a_is_internal_display)
     : initial_bounds(a_initial_bounds),
+      is_internal_display(a_is_internal_display),
       host(NULL) {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindow, public:
 
 RootWindow::RootWindow(const CreateParams& params)
     : Window(NULL),
       ALLOW_THIS_IN_INITIALIZER_LIST(host_(CreateHost(this, params))),
       ALLOW_THIS_IN_INITIALIZER_LIST(schedule_paint_factory_(this)),
@@ skipping 912 matching lines @@
   // currently broken. See/ crbug.com/107931.
   ui::MouseEvent event(ui::ET_MOUSE_MOVED,
                        orig_mouse_location,
                        orig_mouse_location,
                        ui::EF_IS_SYNTHESIZED);
   event.set_system_location(Env::GetInstance()->last_mouse_location());
   OnHostMouseEvent(&event);
 }
 
 }  // namespace aura