content: Make sure the renderer notifies the browser about touch-event handlers properly.

content/browser/renderer_host/render_widget_host_impl.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 480 matching lines @@
                                          int32 route_id,
                                          int32 gpu_process_host_id);
   void OnMsgUpdateRect(const ViewHostMsg_UpdateRect_Params& params);
   void OnMsgUpdateIsDelayed();
   void OnMsgInputEventAck(WebKit::WebInputEvent::Type event_type,
                           bool processed);
   void OnMsgBeginSmoothScroll(bool scroll_down, bool scroll_far);
   virtual void OnMsgFocus();
   virtual void OnMsgBlur();
   void OnMsgDidChangeNumTouchEvents(int count);
+  void OnMsgHasTouchEventHandlers(bool has_handlers);
 
   void OnMsgSetCursor(const WebCursor& cursor);
   void OnMsgTextInputStateChanged(ui::TextInputType type,
                                   bool can_compose_inline);
   void OnMsgImeCompositionRangeChanged(
       const ui::Range& range,
       const std::vector<gfx::Rect>& character_bounds);
   void OnMsgImeCancelComposition();
 
   void OnMsgDidActivateAcceleratedCompositing(bool activated);
@@ skipping 257 matching lines @@
   scoped_ptr<TapSuppressionController> tap_suppression_controller_;
 
   scoped_ptr<SmoothScrollGesture> active_smooth_scroll_gesture_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_