Make RootView::DispatchGestureEvent() non-virtual

ui/events/event.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 "ui/events/event.h"
 
 #if defined(USE_X11)
 #include <X11/extensions/XInput2.h>
 #include <X11/Xlib.h>
 #endif
@@ skipping 98 matching lines @@
 namespace ui {
 
 ////////////////////////////////////////////////////////////////////////////////
 // Event
 
 Event::~Event() {
   if (delete_native_event_)
     ReleaseCopiedNativeEvent(native_event_);
 }
 
+GestureEvent* Event::AsGestureEvent() {
+  CHECK(IsGestureEvent());
+  return static_cast<GestureEvent*>(this);
+}
+
+const GestureEvent* Event::AsGestureEvent() const {
+  CHECK(IsGestureEvent());
+  return static_cast<const GestureEvent*>(this);
+}
+
 bool Event::HasNativeEvent() const {
   base::NativeEvent null_event;
   std::memset(&null_event, 0, sizeof(null_event));
   return !!std::memcmp(&native_event_, &null_event, sizeof(null_event));
 }
 
 void Event::StopPropagation() {
   // TODO(sad): Re-enable these checks once View uses dispatcher to dispatch
   // events.
   // CHECK(phase_ != EP_PREDISPATCH && phase_ != EP_POSTDISPATCH);
@@ skipping 620 matching lines @@
                    gfx::PointF(x, y),
                    time_stamp,
                    flags | EF_FROM_TOUCH),
       details_(details) {
 }
 
 GestureEvent::~GestureEvent() {
 }
 
 }  // namespace ui