Removed the ProcessHandle from the RendererClosedDetails payload

chrome/browser/chromeos/memory/oom_priority_manager.h

Index: chrome/browser/chromeos/memory/oom_priority_manager.h
diff --git a/chrome/browser/chromeos/memory/oom_priority_manager.h b/chrome/browser/chromeos/memory/oom_priority_manager.h
index fcf4d9288207da0c5b6e26b12b439c347413028e..0c19c8e47c70353705cceb044137753cc3424a1e 100644
--- a/chrome/browser/chromeos/memory/oom_priority_manager.h
+++ b/chrome/browser/chromeos/memory/oom_priority_manager.h
@@ -79,6 +79,7 @@ class OomPriorityManager : public content::NotificationObserver {
     bool is_discarded;
     base::TimeTicks last_active;
     base::ProcessHandle renderer_handle;
+    int child_process_host_id;
     base::string16 title;
     int64 tab_contents_id;  // unique ID per WebContents
   };
@@ -111,10 +112,11 @@ class OomPriorityManager : public content::NotificationObserver {
   // Called when the timer fires, sets oom_adjust_score for all renderers.
   void AdjustOomPriorities();
 
-  // Returns a list of unique process handles from |stats_list|. If multiple
-  // tabs use the same process, returns the first process handle. This implies
-  // that the processes are selected based on their "most important" tab.
-  static std::vector<base::ProcessHandle> GetProcessHandles(
+  // Returns a list of child process host ids from |stats_list| with unique
+  // pids. If multiple tabs use the same process, returns the first child
+  // process host id. This implies that the processes are selected based on
+  // their "most important" tab.
+  static std::vector<int> GetChildProcessHostIds(
       const TabStatsList& stats_list);
 
   // Called by AdjustOomPriorities.
@@ -137,12 +139,13 @@ class OomPriorityManager : public content::NotificationObserver {
   base::RepeatingTimer<OomPriorityManager> recent_tab_discard_timer_;
   content::NotificationRegistrar registrar_;
 
-  // This lock is for pid_to_oom_score_ and focus_tab_pid_.
-  base::Lock pid_to_oom_score_lock_;
-  // map maintaining the process - oom_score mapping.
-  typedef base::hash_map<base::ProcessHandle, int> ProcessScoreMap;
-  ProcessScoreMap pid_to_oom_score_;
-  base::ProcessHandle focused_tab_pid_;
+  // This lock is for |oom_score_map_| and |focused_tab_process_host_id_|.
+  base::Lock oom_score_lock_;
+  // Map maintaining the child process host id - oom_score mapping.
+  typedef base::hash_map<int, int> ProcessScoreMap;
+  ProcessScoreMap oom_score_map_;
+  // Holds the focussed tab's child process host id.

[James Cook, 2014/11/22 00:38:46]

nit: focussed -> focused

[sramajay, 2014/11/24 12:00:07]

Done.

+  int focused_tab_process_host_id_;
 
   // Observer for the kernel low memory signal.  NULL if tab discarding is
   // disabled.