Generate thumbnails in the browser process.

chrome/browser/renderer_host/render_view_host.h

 // Copyright (c) 2010 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 CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 524 matching lines @@
 
   bool is_waiting_for_unload_ack() { return is_waiting_for_unload_ack_; }
 #endif
 
   // Checks that the given renderer can request |url|, if not it sets it to an
   // empty url.
   static void FilterURL(ChildProcessSecurityPolicy* policy,
                         int renderer_id,
                         GURL* url);
 
+  const gfx::Size& last_scroll_offset() const { return last_scroll_offset_; }
+
  protected:
   // RenderWidgetHost protected overrides.
   virtual bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
                                       bool* is_keyboard_shortcut);
   virtual void UnhandledKeyboardEvent(const NativeWebKeyboardEvent& event);
   virtual void OnUserGesture();
   virtual void NotifyRendererUnresponsive();
   virtual void NotifyRendererResponsive();
   virtual void OnMsgFocusedNodeChanged(bool is_editable_node);
   virtual void OnMsgFocus();
@@ skipping 141 matching lines @@
                           int maximum_percent,
                           bool remember);
   void OnSetSuggestions(int32 page_id,
                         const std::vector<std::string>& suggestions);
   void OnInstantSupportDetermined(int32 page_id, bool result);
   void OnDetectedPhishingSite(const GURL& phishing_url, double phishing_score);
   void OnScriptEvalResponse(int id, const ListValue& result);
   void OnUpdateContentRestrictions(int restrictions);
   void OnPagesReadyForPreview(
       const ViewHostMsg_DidPreviewDocument_Params& params);
+  void OnUpdateScrollOffset(const gfx::Size& size);
 
 #if defined(OS_MACOSX)
   void OnMsgShowPopup(const ViewHostMsg_ShowPopup_Params& params);
 #endif
 
  private:
   friend class TestRenderViewHost;
 
   // Get/Create print preview tab.
   TabContents* GetOrCreatePrintPreviewTab();
@@ skipping 68 matching lines @@
 
   // Whether the accessibility tree should be saved, for unit testing.
   bool save_accessibility_tree_for_testing_;
 
   // The most recently received accessibility tree - for unit testing only.
   webkit_glue::WebAccessibility accessibility_tree_;
 
   // The termination status of the last render view that terminated.
   base::TerminationStatus render_view_termination_status_;
 
+  // The last scroll offset of the render view.
+  gfx::Size last_scroll_offset_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderViewHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_