Propagate inert state to OOPIFs when a modal dialog is active

third_party/WebKit/Source/core/frame/Frame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 138 matching lines @@
   bool HasReceivedUserGesture() const { return has_received_user_gesture_; }
 
   bool IsAttached() const {
     return lifecycle_.GetState() == FrameLifecycle::kAttached;
   }
 
   // Tests whether the feature-policy controlled feature is enabled by policy in
   // the given frame.
   bool IsFeatureEnabled(WebFeaturePolicyFeature) const;
 
+  // Called to make a frame inert or non-inert. A frame is inert when there
+  // is a modal dialog displayed within an ancestor frame, and this frame
+  // itself is not within the dialog.
+  virtual void SetIsInert(bool) = 0;
+  virtual bool IsInert() const = 0;
+
  protected:
   Frame(FrameClient*, Page&, FrameOwner*, WindowProxyManager*);
 
   mutable FrameTree tree_node_;
 
   Member<Page> page_;
   Member<FrameOwner> owner_;
   Member<DOMWindow> dom_window_;
 
   bool has_received_user_gesture_ = false;
@@ skipping 19 matching lines @@
   return tree_node_;
 }
 
 // Allow equality comparisons of Frames by reference or pointer,
 // interchangeably.
 DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES(Frame)
 
 }  // namespace blink
 
 #endif  // Frame_h