Lazy initialization for ProcessesEventRouter.

chrome/browser/extensions/api/processes/processes_api.h

Index: chrome/browser/extensions/api/processes/processes_api.h
diff --git a/chrome/browser/extensions/api/processes/processes_api.h b/chrome/browser/extensions/api/processes/processes_api.h
index c30169aed51717c69b3b54bb3fa9b01bad8fecc7..ab42c3221f991537a72935aa3dccbca1906826e8 100644
--- a/chrome/browser/extensions/api/processes/processes_api.h
+++ b/chrome/browser/extensions/api/processes/processes_api.h
@@ -14,6 +14,8 @@
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_widget_host.h"
 
+class Profile;
+
 namespace base {
 class ListValue;
 }
@@ -25,11 +27,8 @@ namespace extensions {
 class ProcessesEventRouter : public TaskManagerModelObserver,
                              public content::NotificationObserver {
  public:
-  // Single instance of the event router.
-  static ProcessesEventRouter* GetInstance();
-
-  // Safe to call multiple times.
-  void ObserveProfile(Profile* profile);
+  explicit ProcessesEventRouter(Profile* profile);
+  virtual ~ProcessesEventRouter();
 
   // Called when an extension process wants to listen to process events.
   void ListenerAdded();
@@ -46,11 +45,6 @@ class ProcessesEventRouter : public TaskManagerModelObserver,
   int num_listeners() { return listeners_; }
 
  private:
-  friend struct DefaultSingletonTraits<ProcessesEventRouter>;
-
-  ProcessesEventRouter();
-  virtual ~ProcessesEventRouter();
-
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
@@ -69,11 +63,7 @@ class ProcessesEventRouter : public TaskManagerModelObserver,
       content::RenderProcessHost* rph,
       content::RenderProcessHost::RendererClosedDetails* details);
 
-  void NotifyProfiles(const char* event_name,
-                      scoped_ptr<base::ListValue> event_args);
-
-  void DispatchEvent(Profile* profile,
-                     const char* event_name,
+  void DispatchEvent(const char* event_name,
                      scoped_ptr<base::ListValue> event_args);
 
   // Determines whether there is a registered listener for the specified event.
@@ -83,9 +73,7 @@ class ProcessesEventRouter : public TaskManagerModelObserver,
   // Used for tracking registrations to process related notifications.
   content::NotificationRegistrar registrar_;
 
-  // Registered profiles.
-  typedef std::set<Profile*> ProfileSet;
-  ProfileSet profiles_;
+  Profile* profile_;
 
   // TaskManager to observe for updates.
   TaskManagerModel* model_;