Disable touch calibration on external touchscreen.

ash/display/display_manager.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/display/display_manager.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/display/display_controller.h"
@@ skipping 316 matching lines @@
 #if defined(USE_X11) && defined(OS_CHROMEOS)
   if (!changed_display_indices.empty() && base::chromeos::IsRunningOnChromeOS())
     ui::ClearX11DefaultRootWindow();
 #endif
 }
 
 RootWindow* DisplayManager::CreateRootWindowForDisplay(
     const gfx::Display& display) {
   static int root_window_count = 0;
 
-  RootWindow::CreateParams params(display.bounds_in_pixel());
+  RootWindow::CreateParams params(display.bounds_in_pixel(),
+                                  IsInternalDisplayId(display.id()));
   params.host = Shell::GetInstance()->root_window_host_factory()->
-      CreateRootWindowHost(display.bounds_in_pixel());
+      CreateRootWindowHost(display.bounds_in_pixel(),
+                           IsInternalDisplayId(display.id()));
   aura::RootWindow* root_window = new aura::RootWindow(params);
   root_window->SetName(StringPrintf("RootWindow-%d", root_window_count++));
 
   // No need to remove RootWindowObserver because
   // the DisplayManager object outlives RootWindow objects.
   root_window->AddRootWindowObserver(this);
   root_window->SetProperty(kDisplayIdKey, display.id());
   root_window->Init();
   return root_window;
 }
@@ skipping 256 matching lines @@
     (*iter_to_update).set_id((*iter).id());
   }
 }
 
 void DisplayManager::SetHasOverscanFlagForTest(int64 id, bool has_overscan) {
   display_info_[id].has_overscan = has_overscan;
 }
 
 }  // namespace internal
 }  // namespace ash