Additional heuristic user interaction attribution for page load metrics

chrome/browser/page_load_metrics/metrics_web_contents_observer.h

 // Copyright 2015 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_METRICS_WEB_CONTENTS_OBSERVER_H_
 #define CHROME_BROWSER_PAGE_LOAD_METRICS_METRICS_WEB_CONTENTS_OBSERVER_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 78 matching lines @@
   void HandleFailedNavigationForTrackedLoad(
       content::NavigationHandle* navigation_handle,
       std::unique_ptr<PageLoadTracker> tracker);
 
   void HandleCommittedNavigationForTrackedLoad(
       content::NavigationHandle* navigation_handle,
       std::unique_ptr<PageLoadTracker> tracker);
 
   // Notify all loads, provisional and committed, that we performed an action
   // that might abort them.
-  void NotifyAbortAllLoads(UserAbortType abort_type, bool user_initiated);
+  void NotifyAbortAllLoads(UserAbortType abort_type,
+                           UserInitiatedInfo user_initiated_info);
   void NotifyAbortAllLoadsWithTimestamp(UserAbortType abort_type,
-                                        bool user_initiated,
+                                        UserInitiatedInfo user_initiated_info,
                                         base::TimeTicks timestamp,
                                         bool is_certainly_browser_timestamp);
 
   // Register / Unregister input event callback to given RenderViewHost
   void RegisterInputEventObserver(content::RenderViewHost* host);
   void UnregisterInputEventObserver(content::RenderViewHost* host);
 
   // Notify aborted provisional loads that a new navigation occurred. This is
   // used for more consistent attribution tracking for aborted provisional
   // loads. This method returns the provisional load that was likely aborted
   // by this navigation, to help instantiate the new PageLoadTracker.
   std::unique_ptr<PageLoadTracker> NotifyAbortedProvisionalLoadsNewNavigation(
-      content::NavigationHandle* new_navigation);
+      content::NavigationHandle* new_navigation,
+      UserInitiatedInfo user_initiated_info);
 
   void OnTimingUpdated(content::RenderFrameHost*,
                        const PageLoadTiming& timing,
                        const PageLoadMetadata& metadata);
 
   bool ShouldTrackNavigation(
       content::NavigationHandle* navigation_handle) const;
 
   // True if the web contents is currently in the foreground.
   bool in_foreground_;
@@ skipping 20 matching lines @@
 
   // Has the MWCO observed at least one navigation?
   bool has_navigated_;
 
   DISALLOW_COPY_AND_ASSIGN(MetricsWebContentsObserver);
 };
 
 }  // namespace page_load_metrics
 
 #endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_METRICS_WEB_CONTENTS_OBSERVER_H_