Propagate inert state to OOPIFs when a modal dialog is active

content/browser/frame_host/cross_process_frame_connector.cc

Index: content/browser/frame_host/cross_process_frame_connector.cc
diff --git a/content/browser/frame_host/cross_process_frame_connector.cc b/content/browser/frame_host/cross_process_frame_connector.cc
index 50d8b5895a34efdfb1cdf42ec68dfec96b175fdb..cef3f9a22a12ff724117c8cb6a2dfd0cd35c1fe3 100644
--- a/content/browser/frame_host/cross_process_frame_connector.cc
+++ b/content/browser/frame_host/cross_process_frame_connector.cc
@@ -44,6 +44,7 @@ bool CrossProcessFrameConnector::OnMessageReceived(const IPC::Message& msg) {
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateViewportIntersection,
                         OnUpdateViewportIntersection)
     IPC_MESSAGE_HANDLER(FrameHostMsg_VisibilityChanged, OnVisibilityChanged)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_SetIsInert, OnSetIsInert)
     IPC_MESSAGE_HANDLER(FrameHostMsg_SatisfySequence, OnSatisfySequence)
     IPC_MESSAGE_HANDLER(FrameHostMsg_RequireSequence, OnRequireSequence)
     IPC_MESSAGE_UNHANDLED(handled = false)
@@ -278,6 +279,12 @@ void CrossProcessFrameConnector::OnVisibilityChanged(bool visible) {
   }
 }
 
+void CrossProcessFrameConnector::OnSetIsInert(bool inert) {
+  is_inert_ = inert;
+  if (view_)
+    view_->SetIsInert();
+}
+
 void CrossProcessFrameConnector::SetRect(const gfx::Rect& frame_rect) {
   gfx::Rect old_rect = child_frame_rect_;
   child_frame_rect_ = frame_rect;