A new copy of the old system monitor changelist.

chrome/browser/safe_browsing/safe_browsing_service.h

Index: chrome/browser/safe_browsing/safe_browsing_service.h
===================================================================
--- chrome/browser/safe_browsing/safe_browsing_service.h	(revision 6119)
+++ chrome/browser/safe_browsing/safe_browsing_service.h	(working copy)
@@ -16,6 +16,7 @@
 #include "base/hash_tables.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
+#include "base/system_monitor.h"
 #include "base/thread.h"
 #include "base/time.h"
 #include "chrome/browser/safe_browsing/safe_browsing_util.h"
@@ -31,7 +32,8 @@
 
 // Construction needs to happen on the main thread.
 class SafeBrowsingService
-    : public base::RefCountedThreadSafe<SafeBrowsingService> {
+    : public base::RefCountedThreadSafe<SafeBrowsingService>,
+      public base::SystemMonitor::PowerObserver {
  public:
   // Users of this service implement this interface to be notified
   // asynchronously of the result.
@@ -169,10 +171,12 @@
   // the current page is 'safe'.
   void LogPauseDelay(base::TimeDelta time);
 
+  // PowerObserver notifications
   // We defer SafeBrowsing work for a short duration when the computer comes
   // out of a suspend state to avoid thrashing the disk.
-  void OnSuspend();
-  void OnResume();
+  void OnPowerStateChange(base::SystemMonitor*) {};
+  void OnSuspend(base::SystemMonitor*);
+  void OnResume(base::SystemMonitor*);
 
   bool new_safe_browsing() const { return new_safe_browsing_; }