touch-event queue: Add a touch-event queue for all platforms.

content/browser/renderer_host/render_widget_host_view_base.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 "content/browser/renderer_host/render_widget_host_view_base.h"
 
 #include "base/logging.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/port/browser/smooth_scroll_gesture.h"
@@ skipping 466 matching lines @@
   int mouse_event_x_;
   int mouse_event_y_;
 };
 
 SmoothScrollGesture* RenderWidgetHostViewBase::CreateSmoothScrollGesture(
     bool scroll_down, bool scroll_far, int mouse_event_x, int mouse_event_y) {
   return new BasicMouseWheelSmoothScrollGesture(scroll_down, scroll_far,
                                                 mouse_event_x, mouse_event_y);
 }
 
+void RenderWidgetHostViewBase::ProcessAckedTouchEvent(
+    const WebKit::WebTouchEvent& touch,
+    bool processed) {
+}
+
 }  // namespace content