Pipe "is pinned to left/right", "has horizontal/vertical scrollbar",

content/browser/renderer_host/render_view_host.h

 // Copyright (c) 2011 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_VIEW_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 412 matching lines @@
   void OnMsgRequestMove(const gfx::Rect& pos);
   void OnMsgDidStartLoading();
   void OnMsgDidStopLoading();
   void OnMsgDidChangeLoadProgress(double load_progress);
   void OnMsgDocumentAvailableInMainFrame();
   void OnMsgDocumentOnLoadCompletedInMainFrame(int32 page_id);
   void OnMsgContextMenu(const ContextMenuParams& params);
   void OnMsgOpenURL(const GURL& url, const GURL& referrer,
                     WindowOpenDisposition disposition);
   void OnMsgDidContentsPreferredSizeChange(const gfx::Size& new_size);
+  void OnMsgDidChangeScrollbarsForMainFrame(bool has_horizontal_scrollbar,
+                                            bool has_vertical_scrollbar);
+  void OnMsgDidChangeScrollOffsetPinningForMainFrame(bool is_pinned_to_left,
+                                                     bool is_pinned_to_right);
+  void OnMsgDidChangeNumWheelEvents(int count);
   void OnMsgSelectionChanged(const std::string& text, const ui::Range& range,
                              const gfx::Point& start, const gfx::Point& end);
   void OnMsgPasteFromSelectionClipboard();
   void OnMsgRunJavaScriptMessage(const string16& message,
                                  const string16& default_prompt,
                                  const GURL& frame_url,
                                  const int flags,
                                  IPC::Message* reply_msg);
   void OnMsgRunBeforeUnloadConfirm(const GURL& frame_url,
                                    const string16& message,
@@ skipping 107 matching lines @@
   // The termination status of the last render view that terminated.
   base::TerminationStatus render_view_termination_status_;
 
   // A list of observers that filter messages.  Weak references.
   ObserverList<RenderViewHostObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHost);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_