Propagate inert state to OOPIFs when a modal dialog is active

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index a05ca82276102e673b9d897ca11374b9f6b5f14c..09ff47dbc6f69f6d746b6d00fa7bd71b78dec8bd 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -630,6 +630,7 @@ bool RenderWidget::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(ViewMsg_UpdateScreenRects, OnUpdateScreenRects)
     IPC_MESSAGE_HANDLER(ViewMsg_SetViewportIntersection,
                         OnSetViewportIntersection)
+    IPC_MESSAGE_HANDLER(ViewMsg_SetIsInert, OnSetIsInert)
     IPC_MESSAGE_HANDLER(ViewMsg_WaitForNextFrameForTests,
                         OnWaitNextFrameForTests)
     IPC_MESSAGE_HANDLER(InputMsg_RequestCompositionUpdates,
@@ -1757,6 +1758,13 @@ void RenderWidget::OnSetViewportIntersection(
   }
 }
 
+void RenderWidget::OnSetIsInert(bool inert) {
+  if (GetWebWidget() && GetWebWidget()->IsWebFrameWidget()) {
+    DCHECK(popup_type_ == WebPopupType::kWebPopupTypeNone);
+    static_cast<WebFrameWidget*>(GetWebWidget())->SetIsInert(inert);
+  }
+}
+
 void RenderWidget::OnDragTargetDragEnter(
     const std::vector<DropData::Metadata>& drop_meta_data,
     const gfx::Point& client_point,