Enabled/disable touch screen in TabletPowerButtonController

ash/test/test_shell_delegate.h

Index: ash/test/test_shell_delegate.h
diff --git a/ash/test/test_shell_delegate.h b/ash/test/test_shell_delegate.h
index 143fa14ddb5cbcadb604a9ea1ecf38150b0b2ea3..09527439d58d59bb2bd74d045ec0186596988a78 100644
--- a/ash/test/test_shell_delegate.h
+++ b/ash/test/test_shell_delegate.h
@@ -59,6 +59,8 @@ class TestShellDelegate : public ShellDelegate {
   GPUSupport* CreateGPUSupport() override;
   base::string16 GetProductName() const override;
   gfx::Image GetDeprecatedAcceleratorImage() const override;
+  bool IsTouchscreenEnabled() const override;
+  void SetTouchscreenEnabled(bool enabled) override;
 
   int num_exit_requests() const { return num_exit_requests_; }
 
@@ -75,6 +77,7 @@ class TestShellDelegate : public ShellDelegate {
   int num_exit_requests_;
   bool multi_profiles_enabled_;
   bool force_maximize_on_first_run_;
+  bool touch_screen_enabled_;
 
   std::unique_ptr<app_list::AppListPresenterDelegateFactory>
       app_list_presenter_delegate_factory_;