Fix scroll restoration when exiting fullscreen mode.

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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 "content/browser/frame_host/render_frame_host_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
@@ skipping 1666 matching lines @@
     ax_tree_snapshot_callbacks_.erase(it);
   } else {
     NOTREACHED() << "Received AX tree snapshot response for unknown id";
   }
 }
 
 void RenderFrameHostImpl::OnToggleFullscreen(bool enter_fullscreen) {
   if (enter_fullscreen)
     delegate_->EnterFullscreenMode(GetLastCommittedURL().GetOrigin());
   else
-    delegate_->ExitFullscreenMode();
+    delegate_->ExitFullscreenMode(/* will_cause_resize */ true);
 
   // The previous call might change the fullscreen state. We need to make sure
   // the renderer is aware of that, which is done via the resize message.
   render_view_host_->GetWidget()->WasResized();
 }
 
 void RenderFrameHostImpl::OnDidStartLoading(bool to_different_document) {
   // Any main frame load to a new document should reset the load since it will
   // replace the current page and any frames.
   if (to_different_document && !GetParent())
@@ skipping 854 matching lines @@
   *dst = src;
 
   if (src.routing_id != -1)
     dst->tree_id = RoutingIDToAXTreeID(src.routing_id);
 
   if (src.parent_routing_id != -1)
     dst->parent_tree_id = RoutingIDToAXTreeID(src.parent_routing_id);
 }
 
 }  // namespace content