Bubble scroll events from WebView guest to embedder.

content/renderer/browser_plugin/browser_plugin.h

 // Copyright 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_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 #define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/public/web/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 140 matching lines @@
   // acquires a browser_plugin_instance_id as well. The guest instance ID
   // uniquely identifies a guest WebContents that's hosted by this
   // BrowserPlugin.
   BrowserPlugin(RenderFrame* render_frame,
                 const base::WeakPtr<BrowserPluginDelegate>& delegate);
 
   ~BrowserPlugin() override;
 
   gfx::Rect view_rect() const { return view_rect_; }
 
+  void ScrollEventCompleted(bool scroll_event_handled_by_guest);
+
   void ShowSadGraphic();
   void UpdateInternalInstanceId();
 
   // IPC message handlers.
   // Please keep in alphabetical order.
   void OnAdvanceFocus(int instance_id, bool reverse);
   void OnCompositorFrameSwapped(const IPC::Message& message);
   void OnGuestGone(int instance_id);
   void OnSetChildFrameSurface(int instance_id,
                               const cc::SurfaceId& surface_id,
@@ skipping 49 matching lines @@
   // Weak factory used in v8 |MakeWeak| callback, since the v8 callback might
   // get called after BrowserPlugin has been destroyed.
   base::WeakPtrFactory<BrowserPlugin> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_