[Page Load Metrics] Add mojom file to page load metrics.

chrome/renderer/page_load_metrics/fake_page_timing_metrics_ipc_sender.h

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_PAGE_LOAD_METRICS_FAKE_PAGE_TIMING_METRICS_IPC_SENDER_H_
 #define CHROME_RENDERER_PAGE_LOAD_METRICS_FAKE_PAGE_TIMING_METRICS_IPC_SENDER_H_
 
 #include <vector>
 
 #include "chrome/common/page_load_metrics/page_load_timing.h"
@@ skipping 35 matching lines @@
   bool Send(IPC::Message* message) override;
 
   // PageLoadTimings that are expected to be sent through Send() should be
   // passed to ExpectPageLoadTiming.
   void ExpectPageLoadTiming(const PageLoadTiming& timing);
 
   // Forces verification that actual timings sent through Send match
   // expected timings provided via ExpectPageLoadTiming.
   void VerifyExpectedTimings() const;
 
-  const std::vector<PageLoadTiming>& expected_timings() const {
+  const std::vector<mojo::StructPtr<PageLoadTiming>>& expected_timings() const {
     return expected_timings_;
   }
-  const std::vector<PageLoadTiming>& actual_timings() const {
+  const std::vector<mojo::StructPtr<PageLoadTiming>>& actual_timings() const {
     return actual_timings_;
   }
 
  private:
   void OnTimingUpdated(const PageLoadTiming& timing, PageLoadMetadata metadata);
 
-  std::vector<PageLoadTiming> expected_timings_;
-  std::vector<PageLoadTiming> actual_timings_;
+  std::vector<mojo::StructPtr<PageLoadTiming>> expected_timings_;
+  std::vector<mojo::StructPtr<PageLoadTiming>> actual_timings_;
 };
 
 }  // namespace page_load_metrics
 
 #endif  // CHROME_RENDERER_PAGE_LOAD_METRICS_FAKE_PAGE_TIMING_METRICS_IPC_SENDER_H_