Fix scroll restoration when exiting fullscreen mode.

components/guest_view/browser/guest_view_base.cc

 // Copyright 2014 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.
 
 #include "components/guest_view/browser/guest_view_base.h"
 
 #include "base/lazy_instance.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/guest_view/browser/guest_view_event.h"
 #include "components/guest_view/browser/guest_view_manager.h"
@@ skipping 62 matching lines @@
       Destroy();
   }
 
   void RenderProcessGone(base::TerminationStatus status) override {
     if (destroyed_)
       return;
     // If the embedder process is destroyed, then destroy the guest.
     Destroy();
   }
 
-  void DidToggleFullscreenModeForTab(bool entered_fullscreen) override {
+  void DidToggleFullscreenModeForTab(bool entered_fullscreen,
+                                     bool will_cause_resize) override {
     if (destroyed_)
       return;
 
     is_fullscreen_ = entered_fullscreen;
     guest_->EmbedderFullscreenToggled(is_fullscreen_);
   }
 
   void MainFrameWasResized(bool width_changed) override {
     if (destroyed_ || !web_contents()->GetDelegate())
       return;
@@ skipping 777 matching lines @@
 
 void GuestViewBase::UpdateGuestSize(const gfx::Size& new_size,
                                     bool due_to_auto_resize) {
   if (due_to_auto_resize)
     GuestSizeChangedDueToAutoSize(guest_size_, new_size);
   DispatchOnResizeEvent(guest_size_, new_size);
   guest_size_ = new_size;
 }
 
 }  // namespace guest_view