Record input start time in LocalFrame::Reload and CreateWindowForRequest

I found these additional cases in an audit of the code for bug 889220.

Bug: 889220
Change-Id: I649200d91625c2a47848132b79a846174fa4a3e1
Reviewed-on: https://chromium-review.googlesource.com/c/1276551
Commit-Queue: Annie Sullivan <sullivan@chromium.org>
Reviewed-by: Steve Kobes <skobes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#598820}

third_party/blink/renderer/core/frame/local_frame.cc

@@ -58,6 +58,7 @@
 #include "third_party/blink/renderer/core/editing/serializers/serialization.h"
 #include "third_party/blink/renderer/core/editing/spellcheck/spell_checker.h"
 #include "third_party/blink/renderer/core/editing/suggestion/text_suggestion_controller.h"
+#include "third_party/blink/renderer/core/events/current_input_event.h"
 #include "third_party/blink/renderer/core/exported/web_plugin_container_impl.h"
 #include "third_party/blink/renderer/core/frame/ad_tracker.h"
 #include "third_party/blink/renderer/core/frame/content_settings_client.h"
@@ -458,6 +459,9 @@ void LocalFrame::Reload(WebFrameLoadType load_type,
         nullptr,
         loader_.ResourceRequestForReload(load_type, client_redirect_policy));
     request.SetClientRedirect(client_redirect_policy);
+    if (const WebInputEvent* input_event = CurrentInputEvent::Get()) {
+      request.SetInputStartTime(input_event->TimeStamp());
+    }
     loader_.StartNavigation(request, load_type);
   } else {
     DCHECK_EQ(WebFrameLoadType::kReload, load_type);

third_party/blink/renderer/core/page/create_window.cc

@@ -493,6 +493,9 @@ void CreateWindowForRequest(const FrameLoadRequest& request,
   // TODO(japhet): Form submissions on RemoteFrames don't work yet.
   FrameLoadRequest new_request(nullptr, request.GetResourceRequest());
   new_request.SetForm(request.Form());
+  if (const WebInputEvent* input_event = CurrentInputEvent::Get()) {
+    new_request.SetInputStartTime(input_event->TimeStamp());
+  }
   auto blob_url_token = request.GetBlobURLToken();
   if (blob_url_token)
     new_request.SetBlobURLToken(std::move(blob_url_token));