[Android WebView] Implement WebSettings.{get|set}LoadWithOverviewMode

android_webview/browser/renderer_host/aw_render_view_host_ext.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 ANDROID_WEBVIEW_BROWSER_RENDER_HOST_RENDER_VIEW_HOST_EXT_H_
 #define ANDROID_WEBVIEW_BROWSER_RENDER_HOST_RENDER_VIEW_HOST_EXT_H_
 
 #include "content/public/browser/web_contents_observer.h"
 
 #include "android_webview/common/aw_hit_test_data.h"
@@ skipping 36 matching lines @@
   void MarkHitTestDataRead();
 
   // Return |last_hit_test_data_|. Note that this is unavoidably racy;
   // the corresponding public WebView API is as well.
   const AwHitTestData& GetLastHitTestData() const;
 
   // Sets the zoom level for text only. Used in layout modes other than
   // Text Autosizing.
   void SetTextZoomLevel(double level);
 
+  void ResetScrollAndScaleState();
+
  private:
   // content::WebContentsObserver implementation.
   virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE;
   virtual void DidNavigateAnyFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   void OnDocumentHasImagesResponse(int msg_id, bool has_images);
   void OnUpdateHitTestData(const AwHitTestData& hit_test_data);
   void OnPictureUpdated();
 
   bool IsRenderViewReady() const;
 
   std::map<int, DocumentHasImagesResult> pending_document_has_images_requests_;
 
   // Master copy of hit test data on the browser side. This is updated
   // as a result of DoHitTest called explicitly or when the FocusedNodeChanged
   // is called in AwRenderViewExt.
   AwHitTestData last_hit_test_data_;
 
   bool has_new_hit_test_data_;
 
   DISALLOW_COPY_AND_ASSIGN(AwRenderViewHostExt);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_RENDER_HOST_RENDER_VIEW_HOST_EXT_H_