Refactored static_cast'ing of events to use the AsXXXEvent() methods.

ui/events/event.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_EVENTS_EVENT_H_
 #define UI_EVENTS_EVENT_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 12 matching lines @@
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/point_conversions.h"
 
 namespace gfx {
 class Transform;
 }
 
 namespace ui {
+class CancelModeEvent;
 class EventTarget;
 class KeyEvent;
 class LocatedEvent;
 class MouseEvent;
 class MouseWheelEvent;
 class PointerEvent;
 class ScrollEvent;
 class TouchEvent;
 enum class DomCode;
 class Event;
@@ skipping 57 matching lines @@
 
   // The following methods return true if the respective keys were pressed at
   // the time the event was created.
   bool IsShiftDown() const { return (flags_ & EF_SHIFT_DOWN) != 0; }
   bool IsControlDown() const { return (flags_ & EF_CONTROL_DOWN) != 0; }
   bool IsAltDown() const { return (flags_ & EF_ALT_DOWN) != 0; }
   bool IsCommandDown() const { return (flags_ & EF_COMMAND_DOWN) != 0; }
   bool IsAltGrDown() const { return (flags_ & EF_ALTGR_DOWN) != 0; }
   bool IsCapsLockOn() const { return (flags_ & EF_CAPS_LOCK_ON) != 0; }
 
+  bool IsCancelModeEvent() const {
+    return type_ == ET_CANCEL_MODE;
+  }
+
   bool IsKeyEvent() const {
     return type_ == ET_KEY_PRESSED || type_ == ET_KEY_RELEASED;
   }
 
   bool IsMouseEvent() const {
     return type_ == ET_MOUSE_PRESSED ||
            type_ == ET_MOUSE_DRAGGED ||
            type_ == ET_MOUSE_RELEASED ||
            type_ == ET_MOUSE_MOVED ||
            type_ == ET_MOUSE_ENTERED ||
@@ skipping 93 matching lines @@
 
   bool IsMouseWheelEvent() const {
     return type_ == ET_MOUSEWHEEL;
   }
 
   bool IsLocatedEvent() const {
     return IsMouseEvent() || IsScrollEvent() || IsTouchEvent() ||
            IsGestureEvent() || IsPointerEvent();
   }
 
+  // Convenience methods to cast |this| to a CancelModeEvent.
+  // IsCancelModeEvent() must be true as a precondition to calling these
+  // methods.
+  CancelModeEvent* AsCancelModeEvent();
+  const CancelModeEvent* AsCancelModeEvent() const;
+
   // Convenience methods to cast |this| to a GestureEvent. IsGestureEvent()
   // must be true as a precondition to calling these methods.
   GestureEvent* AsGestureEvent();
   const GestureEvent* AsGestureEvent() const;
 
   // Convenience methods to cast |this| to a KeyEvent. IsKeyEvent()
   // must be true as a precondition to calling these methods.
   KeyEvent* AsKeyEvent();
   const KeyEvent* AsKeyEvent() const;
 
@@ skipping 793 matching lines @@
   // dispatched. This field gets a non-zero value only for gestures that are
   // released through TouchDispositionGestureFilter::SendGesture. The gesture
   // events that aren't fired directly in response to processing a touch-event
   // (e.g. timer fired ones), this id is zero. See crbug.com/618738.
   uint32_t unique_touch_event_id_;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_EVENT_H_