Disable touch calibration on external touchscreen.

ui/aura/root_window.h

 // 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.
 
 #ifndef UI_AURA_ROOT_WINDOW_H_
 #define UI_AURA_ROOT_WINDOW_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 45 matching lines @@
                                public ui::CompositorObserver,
                                public Window,
                                public ui::EventDispatcherDelegate,
                                public ui::GestureEventHelper,
                                public ui::LayerAnimationObserver,
                                public aura::client::CaptureDelegate,
                                public aura::RootWindowHostDelegate {
  public:
   struct AURA_EXPORT CreateParams {
     // CreateParams with initial_bounds and default host.
-    explicit CreateParams(const gfx::Rect& initial_bounds);
+    explicit CreateParams(const gfx::Rect& initial_bounds,
+                          bool is_internal_display);

[oshima, 2013/02/04 19:20:05]

internal display <-> root window mapping is dynamic
(it changes when you swap display), so this doesn't work.

Let me take a look and get back to you about better approach.

[ynovikov, 2013/03/13 23:34:21]

Done.

     ~CreateParams() {}
 
     gfx::Rect initial_bounds;
+    // True if RootWindow corresponds to an internal display (on ChromeOS).
+    bool is_internal_display;
 
     // A host to use in place of the default one that RootWindow will create.
     // NULL by default.
     RootWindowHost* host;
   };
 
   explicit RootWindow(const CreateParams& params);
   virtual ~RootWindow();
 
   // Returns the RootWindowHost for the specified accelerated widget, or NULL
@@ skipping 326 matching lines @@
   base::WeakPtrFactory<RootWindow> held_mouse_event_factory_;
 
   scoped_ptr<ui::ViewProp> prop_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindow);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_H_