PlzNavigate: support the WebRequest API

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index eaeb30e2a342daf5ba0905ce483d371a4c38cb67..6d0a5604baee6ec58d0b67511bc9be722575f8a5 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -4500,6 +4500,12 @@ ScopedVector<NavigationThrottle> WebContentsImpl::CreateThrottlesForNavigation(
       navigation_handle);
 }
 
+std::unique_ptr<NavigationUIData> WebContentsImpl::GetNavigationUIData(
+    NavigationHandle* navigation_handle) {
+  DCHECK(IsBrowserSideNavigationEnabled());
+  return GetContentClient()->browser()->GetNavigationUIData(navigation_handle);
+}
+
 void WebContentsImpl::DidCancelLoading() {
   controller_.DiscardNonCommittedEntries();