PlzNavigate: track pending commits

content/test/test_render_frame_host.cc

Index: content/test/test_render_frame_host.cc
diff --git a/content/test/test_render_frame_host.cc b/content/test/test_render_frame_host.cc
index 93bc602599602e5a8ce517628c914dc2b1c966c9..c0c2d907ffc3913d2da2f2faa48ab68e4b405dcd 100644
--- a/content/test/test_render_frame_host.cc
+++ b/content/test/test_render_frame_host.cc
@@ -200,6 +200,13 @@ void TestRenderFrameHost::SendNavigateWithParameters(
   OnDidCommitProvisionalLoad(msg);
 }
 
+void TestRenderFrameHost::NavigateAndCommitRendererInitiated(int page_id,
+                                                             const GURL& url) {
+  SendRendererInitiatedNavigationRequest(url, false);
+  PrepareForCommit();
+  SendNavigate(page_id, url);
+}
+
 void TestRenderFrameHost::SendRendererInitiatedNavigationRequest(
     const GURL& url,
     bool has_user_gesture) {
@@ -229,7 +236,8 @@ void TestRenderFrameHost::PrepareForCommitWithServerRedirect(
   if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableBrowserSideNavigation)) {
     // Non PlzNavigate
-    SendBeforeUnloadACK(true);
+    if (IsWaitingForBeforeUnloadACK())
+      SendBeforeUnloadACK(true);
     return;
   }