PlzNavigate: stop navigations when opening a document for write

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index d876884c8b54eced000a6e7fba8bffab634483a6..1164a0111ca7bd178f8d40f0884b9d94e30bb6b2 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -739,6 +739,7 @@ bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateEncoding, OnUpdateEncoding)
     IPC_MESSAGE_HANDLER(FrameHostMsg_BeginNavigation,
                         OnBeginNavigation)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_AbortNavigation, OnAbortNavigation)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DispatchLoad, OnDispatchLoad)
     IPC_MESSAGE_HANDLER(FrameHostMsg_TextSurroundingSelectionResponse,
                         OnTextSurroundingSelectionResponse)
@@ -1974,6 +1975,16 @@ void RenderFrameHostImpl::OnBeginNavigation(
       frame_tree_node(), validated_params, validated_begin_params);
 }
 
+void RenderFrameHostImpl::OnAbortNavigation() {
+  if (!IsBrowserSideNavigationEnabled()) {
+    NOTREACHED();
+    return;
+  }
+  if (!is_active())
+    return;
+  frame_tree_node()->navigator()->OnAbortNavigation(frame_tree_node());
+}
+
 void RenderFrameHostImpl::OnDispatchLoad() {
   CHECK(SiteIsolationPolicy::AreCrossProcessFramesPossible());