Move HttpStreamFactoryImpl::JobController UMA to a schedule upload

net/http/http_stream_factory_impl.h

Index: net/http/http_stream_factory_impl.h
diff --git a/net/http/http_stream_factory_impl.h b/net/http/http_stream_factory_impl.h
index ce29d1f737245db52d205d9bb0f360e4afb51d14..eba575ec8bed9ad81ef590f70186e6995d0690e7 100644
--- a/net/http/http_stream_factory_impl.h
+++ b/net/http/http_stream_factory_impl.h
@@ -16,6 +16,7 @@
 #include "base/memory/ref_counted.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/net_export.h"
+#include "net/base/network_change_notifier.h"
 #include "net/base/privacy_mode.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_stream_factory.h"
@@ -31,7 +32,9 @@ class ProxyInfo;
 class SpdySession;
 class NetLogWithSource;
 
-class NET_EXPORT_PRIVATE HttpStreamFactoryImpl : public HttpStreamFactory {
+class NET_EXPORT_PRIVATE HttpStreamFactoryImpl
+    : public HttpStreamFactory,
+      NetworkChangeNotifier::MetricsObserver {
  public:
   class NET_EXPORT_PRIVATE Job;
   class NET_EXPORT_PRIVATE JobController;
@@ -85,6 +88,9 @@ class NET_EXPORT_PRIVATE HttpStreamFactoryImpl : public HttpStreamFactory {
     PRECONNECT,
   };
 
+  // NetworkChangeNotifier::MetricsObserver implementation.
+  void OnMetricsFinalize() override;
+
  private:
   FRIEND_TEST_ALL_PREFIXES(HttpStreamFactoryImplRequestTest, SetPriority);
   FRIEND_TEST_ALL_PREFIXES(HttpStreamFactoryImplRequestTest, DelayMainJob);
@@ -191,6 +197,8 @@ class NET_EXPORT_PRIVATE HttpStreamFactoryImpl : public HttpStreamFactory {
 
   const bool for_websockets_;
 
+  base::ThreadChecker thread_checker_;
+
   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactoryImpl);
 };