[WIP] Call WebTestProxyBase::CheckDone() in didStopLoading()

components/printing/renderer/print_web_view_helper.cc

Index: components/printing/renderer/print_web_view_helper.cc
diff --git a/components/printing/renderer/print_web_view_helper.cc b/components/printing/renderer/print_web_view_helper.cc
index 91c72303c93818c2e93668d37be2479ac0c2f506..39105d7167e9626edd4ea472a9ba4826ae352b26 100644
--- a/components/printing/renderer/print_web_view_helper.cc
+++ b/components/printing/renderer/print_web_view_helper.cc
@@ -606,7 +606,7 @@ class PrepareFrameAndViewForPrint : public blink::WebViewClient,
 
  private:
   // blink::WebViewClient:
-  void didStopLoading() override;
+  void didStopLoading(blink::WebLocalFrame*) override;
   // TODO(ojan): Remove this override and have this class use a non-null
   // layerTreeView.
   bool allowsBrokenNullLayerTreeView() const override;
@@ -748,7 +748,7 @@ bool PrepareFrameAndViewForPrint::allowsBrokenNullLayerTreeView() const {
   return true;
 }
 
-void PrepareFrameAndViewForPrint::didStopLoading() {
+void PrepareFrameAndViewForPrint::didStopLoading(blink::WebLocalFrame*) {
   DCHECK(!on_ready_.is_null());
   // Don't call callback here, because it can delete |this| and WebView that is
   // called didStopLoading.