Disable ephemeral apps after they stop running

chrome/browser/apps/ephemeral_app_service.h

Index: chrome/browser/apps/ephemeral_app_service.h
diff --git a/chrome/browser/apps/ephemeral_app_service.h b/chrome/browser/apps/ephemeral_app_service.h
index ede710a63624489179cb236f2531edf1b3e7cc35..be96c6810ac66ea9d062b3c2347ae7c49fa2c6e0 100644
--- a/chrome/browser/apps/ephemeral_app_service.h
+++ b/chrome/browser/apps/ephemeral_app_service.h
@@ -8,6 +8,8 @@
 #include <map>
 #include <set>
 
+#include "apps/app_lifetime_monitor.h"
+#include "base/memory/weak_ptr.h"
 #include "base/scoped_observer.h"
 #include "base/timer/timer.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ -25,7 +27,8 @@ class ExtensionRegistry;
 // Performs the background garbage collection of ephemeral apps.
 class EphemeralAppService : public KeyedService,
                             public content::NotificationObserver,
-                            public extensions::ExtensionRegistryObserver {
+                            public extensions::ExtensionRegistryObserver,
+                            public apps::AppLifetimeMonitor::Observer {
  public:
   // Returns the instance for the given profile. This is a convenience wrapper
   // around EphemeralAppServiceFactory::GetForProfile.
@@ -39,6 +42,8 @@ class EphemeralAppService : public KeyedService,
 
   int ephemeral_app_count() const { return ephemeral_app_count_; }
 
+  void set_unload_delay_for_test(int delay) { unload_idle_app_delay_ = delay; }
+
   // Constants exposed for testing purposes:
 
   // The number of days of inactivity before an ephemeral app will be removed.
@@ -70,9 +75,18 @@ class EphemeralAppService : public KeyedService,
       const extensions::Extension* extension,
       extensions::UninstallReason reason) OVERRIDE;
 
+  // apps::AppLifetimeMonitor::Observer implementation.
+  virtual void OnAppStop(Profile* profile, const std::string& app_id) OVERRIDE;
+  virtual void OnChromeTerminating() OVERRIDE;
+
   void Init();
   void InitEphemeralAppCount();
 
+  void UnloadEphemeralApp(const std::string& app_id);
+  void UnloadEphemeralAppsOnStartup();
+
+  void HandleEphemeralAppPromoted(const extensions::Extension* app);
+
   // Garbage collect ephemeral apps.
   void TriggerGarbageCollect(const base::TimeDelta& delay);
   void GarbageCollectApps();
@@ -92,6 +106,12 @@ class EphemeralAppService : public KeyedService,
   // The count of cached ephemeral apps.
   int ephemeral_app_count_;
 
+  // Number of seconds before unloading idle ephemeral apps.
+  // Overridden in tests.
+  int unload_idle_app_delay_;
+
+  base::WeakPtrFactory<EphemeralAppService> weak_ptr_factory_;
+
   friend class EphemeralAppServiceTest;
   friend class EphemeralAppServiceBrowserTest;