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

chrome/browser/page_load_metrics/page_load_tracker.h

 // Copyright 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_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_TRACKER_H_
 #define CHROME_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_TRACKER_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 206 matching lines @@
   void OnInputEvent(const blink::WebInputEvent& event);
 
   // Flush any buffered metrics, as part of the metrics subsystem persisting
   // metrics as the application goes into the background. The application may be
   // killed at any time after this method is invoked without further
   // notification.
   void FlushMetricsOnAppEnterBackground();
 
   void NotifyClientRedirectTo(const PageLoadTracker& destination);
 
-  void UpdateTiming(const PageLoadTiming& timing,
-                    const PageLoadMetadata& metadata);
+  void UpdateTiming(const mojom::PageLoadTiming& timing,
+                    const mojom::PageLoadMetadata& metadata);
 
   void UpdateSubFrameTiming(content::RenderFrameHost* render_frame_host,
-                            const PageLoadTiming& new_timing,
-                            const PageLoadMetadata& new_metadata);
+                            const mojom::PageLoadTiming& new_timing,
+                            const mojom::PageLoadMetadata& new_metadata);
 
   // Update metadata for child frames. Updates for child frames arrive
   // separately from updates for the main frame, so aren't included in
   // UpdateTiming.
-  void UpdateSubFrameMetadata(const PageLoadMetadata& subframe_metadata);
+  void UpdateSubFrameMetadata(const mojom::PageLoadMetadata& subframe_metadata);
 
   void OnStartedResource(
       const ExtraRequestStartInfo& extra_request_started_info);
 
   void OnLoadedResource(
       const ExtraRequestCompleteInfo& extra_request_complete_info);
 
   // Signals that we should stop tracking metrics for the associated page load.
   // We may stop tracking a page load if it doesn't meet the criteria for
   // tracking metrics in DidFinishNavigation.
@@ skipping 85 matching lines @@
   // If |final_navigation| is null, then this is an "unparented" abort chain,
   // and represents a sequence of provisional aborts that never ends with a
   // committed load.
   void LogAbortChainHistograms(content::NavigationHandle* final_navigation);
 
   void MaybeUpdateURL(content::NavigationHandle* navigation_handle);
 
   // Merge values from |new_paint_timing| into |merged_page_timing_|, offsetting
   // any new timings by the |navigation_start_offset|.
   void MergePaintTiming(base::TimeDelta navigation_start_offset,
-                        const page_load_metrics::PaintTiming& new_paint_timing,
+                        const mojom::PaintTiming& new_paint_timing,
                         bool is_main_frame);
 
   void DispatchTimingUpdates();
 
   UserInputTracker input_tracker_;
 
   // Whether we stopped tracking this navigation after it was initiated. We may
   // stop tracking a navigation if it doesn't meet the criteria for tracking
   // metrics in DidFinishNavigation.
   bool did_stop_tracking_;
@@ skipping 36 matching lines @@
   // We record separate metrics for events that occur after a background,
   // because metrics like layout/paint are delayed artificially
   // when they occur in the background.
   base::TimeTicks background_time_;
   base::TimeTicks foreground_time_;
   bool started_in_foreground_;
 
   // PageLoadTiming for the currently tracked page. The fields in |paint_timing|
   // are merged across all frames in the document. All other fields are for the
   // main frame document.
-  PageLoadTiming merged_page_timing_;
-  PageLoadTiming last_dispatched_merged_page_timing_;
+  mojom::PageLoadTimingPtr merged_page_timing_;
+  mojom::PageLoadTimingPtr last_dispatched_merged_page_timing_;
 
-  PageLoadMetadata main_frame_metadata_;
-  PageLoadMetadata last_dispatched_main_frame_metadata_;
+  mojom::PageLoadMetadata main_frame_metadata_;
+  mojom::PageLoadMetadataPtr last_dispatched_main_frame_metadata_;
 
-  PageLoadMetadata subframe_metadata_;
+  mojom::PageLoadMetadata subframe_metadata_;
 
   ui::PageTransition page_transition_;
 
   base::Optional<content::GlobalRequestID> navigation_request_id_;
 
   // Whether this page load was user initiated.
   UserInitiatedInfo user_initiated_info_;
 
   // This is a subtle member. If a provisional load A gets aborted by
   // provisional load B, which gets aborted by C that eventually commits, then
@@ skipping 15 matching lines @@
   // Navigation start offsets for the most recently committed document in each
   // frame.
   std::map<FrameTreeNodeId, base::TimeDelta> subframe_navigation_start_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(PageLoadTracker);
 };
 
 }  // namespace page_load_metrics
 
 #endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_TRACKER_H_