Update from https://crrev.com/315085

net/url_request/url_request_http_job.cc

Index: net/url_request/url_request_http_job.cc
diff --git a/net/url_request/url_request_http_job.cc b/net/url_request/url_request_http_job.cc
index 68858c147586fc902d58c50f946829c46bf543e1..4247d83ce0134ec541b2689d776b58b94b18e8ad 100644
--- a/net/url_request/url_request_http_job.cc
+++ b/net/url_request/url_request_http_job.cc
@@ -10,6 +10,7 @@
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
+#include "base/debug/dump_without_crashing.h"
 #include "base/file_version_info.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
@@ -289,6 +290,12 @@ void URLRequestHttpJob::Start() {
 }
 
 void URLRequestHttpJob::Kill() {
+  if (awaiting_callback_) {
+    // TODO(battre) crbug.com/289715
+    // Simulate a crash to see who kills the job while it is waiting for a
+    // callback. This should not happen, see URLRequest::OrphanJob().
+    base::debug::DumpWithoutCrashing();
+  }
   if (!transaction_.get())
     return;
 
@@ -1020,6 +1027,11 @@ void URLRequestHttpJob::SetExtraRequestHeaders(
 }
 
 LoadState URLRequestHttpJob::GetLoadState() const {
+  // TODO(pkasting): Remove ScopedTracker below once crbug.com/455952 is
+  // fixed.
+  tracked_objects::ScopedTracker tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "455952 URLRequestHttpJob::GetLoadState"));
   return transaction_.get() ?
       transaction_->GetLoadState() : LOAD_STATE_IDLE;
 }