Adds WmShell::IsTouchDown()

ash/aura/wm_shell_aura.cc

 // Copyright 2016 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/aura/wm_shell_aura.h"
 
 #include <utility>
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_delegate.h"
 #include "ash/common/shell_observer.h"
 #include "ash/common/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard.h"
 #include "ash/common/wm/mru_window_tracker.h"
 #include "ash/common/wm/overview/window_selector_controller.h"
 #include "ash/common/wm_activation_observer.h"
 #include "ash/common/wm_display_observer.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/window_tree_host_manager.h"
 #include "ash/metrics/task_switch_metrics_recorder.h"
 #include "ash/shell.h"
 #include "ash/wm/drag_window_resizer.h"
 #include "ash/wm/maximize_mode/maximize_mode_event_handler_aura.h"
 #include "ash/wm/screen_pinning_controller.h"
 #include "ash/wm/window_cycle_event_filter_aura.h"
 #include "ash/wm/window_util.h"
 #include "base/memory/ptr_util.h"
 #include "ui/aura/client/focus_client.h"
+#include "ui/aura/env.h"
 #include "ui/wm/public/activation_client.h"
 
 #if defined(OS_CHROMEOS)
 #include "ash/virtual_keyboard_controller.h"
 #endif
 
 #if defined(USE_X11)
 #include "ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.h"
 #endif
 
@@ skipping 168 matching lines @@
 }
 
 void WmShellAura::AddPointerWatcher(views::PointerWatcher* watcher) {
   Shell::GetInstance()->AddPointerWatcher(watcher);
 }
 
 void WmShellAura::RemovePointerWatcher(views::PointerWatcher* watcher) {
   Shell::GetInstance()->RemovePointerWatcher(watcher);
 }
 
+bool WmShellAura::IsTouchDown() {
+  return aura::Env::GetInstance()->is_touch_down();
+}
+
 #if defined(OS_CHROMEOS)
 void WmShellAura::ToggleIgnoreExternalKeyboard() {
   Shell::GetInstance()
       ->virtual_keyboard_controller()
       ->ToggleIgnoreExternalKeyboard();
 }
 #endif
 
 void WmShellAura::OnWindowActivated(
     aura::client::ActivationChangeObserver::ActivationReason reason,
@@ skipping 19 matching lines @@
   FOR_EACH_OBSERVER(WmDisplayObserver, display_observers_,
                     OnDisplayConfigurationChanging());
 }
 
 void WmShellAura::OnDisplayConfigurationChanged() {
   FOR_EACH_OBSERVER(WmDisplayObserver, display_observers_,
                     OnDisplayConfigurationChanged());
 }
 
 }  // namespace ash