Revert of [Page Load Metrics] PageLoadMetrics Mojofication.

chrome/renderer/page_load_metrics/page_timing_metrics_sender.h

Index: chrome/renderer/page_load_metrics/page_timing_metrics_sender.h
diff --git a/chrome/renderer/page_load_metrics/page_timing_metrics_sender.h b/chrome/renderer/page_load_metrics/page_timing_metrics_sender.h
index 910f4f6d4269d63b205ac2b9afe7b8e4163cce00..3f3d2f50567489ecc21868b273716b118f890a21 100644
--- a/chrome/renderer/page_load_metrics/page_timing_metrics_sender.h
+++ b/chrome/renderer/page_load_metrics/page_timing_metrics_sender.h
@@ -15,16 +15,19 @@
 class Timer;
 }  // namespace base
 
+namespace IPC {
+class Sender;
+}  // namespace IPC
+
 namespace page_load_metrics {
-
-class PageTimingSender;
 
 // PageTimingMetricsSender is responsible for sending page load timing metrics
 // over IPC. PageTimingMetricsSender may coalesce sent IPCs in order to
 // minimize IPC contention.
 class PageTimingMetricsSender {
  public:
-  PageTimingMetricsSender(std::unique_ptr<PageTimingSender> sender,
+  PageTimingMetricsSender(IPC::Sender* ipc_sender,
+                          int routing_id,
                           std::unique_ptr<base::Timer> timer,
                           mojom::PageLoadTimingPtr initial_timing);
   ~PageTimingMetricsSender();
@@ -39,13 +42,14 @@
   void EnsureSendTimer();
   void SendNow();
 
-  std::unique_ptr<PageTimingSender> sender_;
+  IPC::Sender* const ipc_sender_;
+  const int routing_id_;
   std::unique_ptr<base::Timer> timer_;
   mojom::PageLoadTimingPtr last_timing_;
 
   // The the sender keep track of metadata as it comes in, because the sender is
   // scoped to a single committed load.
-  mojom::PageLoadMetadataPtr metadata_;
+  mojom::PageLoadMetadata metadata_;
 
   bool have_sent_ipc_ = false;