Propagate inert state to OOPIFs when a modal dialog is active

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

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
@@ skipping 175 matching lines @@
 bool Frame::IsFeatureEnabled(WebFeaturePolicyFeature feature) const {
   WebFeaturePolicy* feature_policy = GetSecurityContext()->GetFeaturePolicy();
   // The policy should always be initialized before checking it to ensure we
   // properly inherit the parent policy.
   DCHECK(feature_policy);
 
   // Otherwise, check policy.
   return feature_policy->IsFeatureEnabled(feature);
 }
 
+void Frame::SetOwner(FrameOwner* owner) {
+  owner_ = owner;
+  UpdateInertIfPossible();
+}
+
+void Frame::UpdateInertIfPossible() {
+  if (owner_ && owner_->IsLocal()) {
+    ToHTMLFrameOwnerElement(owner_)->UpdateDistribution();
+    if (ToHTMLFrameOwnerElement(owner_)->IsInert())
+      SetIsInert(true);
+  }
+}
+
 Frame::Frame(FrameClient* client,
              Page& page,
              FrameOwner* owner,
              WindowProxyManager* window_proxy_manager)
     : tree_node_(this),
       page_(&page),
       owner_(owner),
       client_(client),
       window_proxy_manager_(window_proxy_manager),
       is_loading_(false) {
   InstanceCounters::IncrementCounter(InstanceCounters::kFrameCounter);
 
   if (owner_)
     owner_->SetContentFrame(*this);
   else
     page_->SetMainFrame(this);
 }
 
 }  // namespace blink