Add load flag indicating a request is probably the result of a user gesture.

net/url_request/url_request_throttler_simulation_unittest.cc

Index: net/url_request/url_request_throttler_simulation_unittest.cc
diff --git a/net/url_request/url_request_throttler_simulation_unittest.cc b/net/url_request/url_request_throttler_simulation_unittest.cc
index 287b0a758f263b4e896da679f594b2aa7e8c10d4..5ee1746bd4c9faa232e2ddef04bef976f27814a3 100644
--- a/net/url_request/url_request_throttler_simulation_unittest.cc
+++ b/net/url_request/url_request_throttler_simulation_unittest.cc
@@ -425,7 +425,7 @@ class Requester : public DiscreteTimeSimulation::Actor {
 
     if (throttler_entry_->fake_now() - time_of_last_attempt_ >
         effective_delay) {
-      if (!throttler_entry_->IsDuringExponentialBackoff()) {
+      if (!throttler_entry_->ShouldRejectRequest(0)) {
         int status_code = server_->HandleRequest();
         MockURLRequestThrottlerHeaderAdapter response_headers(status_code);
         throttler_entry_->UpdateWithResponse("", &response_headers);