Fix scroll restoration when exiting fullscreen mode.

content/public/browser/web_contents.h

Index: content/public/browser/web_contents.h
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index 6f68c96273a453be2afb952657410e8c5908a2e5..744b46fba81671852b8cf668161c3d0543dbe931 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -669,7 +669,10 @@ class WebContents : public PageNavigator,
   virtual void HasManifest(const HasManifestCallback& callback) = 0;
 
   // Requests the renderer to exit fullscreen.
-  virtual void ExitFullscreen() = 0;
+  // |will_cause_resize| indicates whether the fullscreen change causes a
+  // view resize. e.g. This will be false when going from tab fullscreen to
+  // browser fullscreen.
+  virtual void ExitFullscreen(bool will_cause_resize) = 0;
 
   // Unblocks requests from renderer for a newly created window. This is
   // used in showCreatedWindow() or sometimes later in cases where