Disable ephemeral apps after they stop running

extensions/browser/event_router.cc

 // Copyright (c) 2012 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.
 
 #include "extensions/browser/event_router.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "extensions/browser/api_activity_monitor.h"
 #include "extensions/browser/extension_host.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
-#include "extensions/browser/extension_util.h"
 #include "extensions/browser/extensions_browser_client.h"
 #include "extensions/browser/lazy_background_task_queue.h"
 #include "extensions/browser/notification_types.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/browser/process_map.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_api.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/common/extension_urls.h"
 #include "extensions/common/manifest_handlers/background_info.h"
@@ skipping 589 matching lines @@
   if (!cross_incognito)
     return true;
   return ExtensionsBrowserClient::Get()->CanExtensionCrossIncognito(
       extension, context);
 }
 
 bool EventRouter::MaybeLoadLazyBackgroundPageToDispatchEvent(
     BrowserContext* context,
     const Extension* extension,
     const linked_ptr<Event>& event) {
-  if (util::IsEphemeralApp(extension->id(), context) &&
-      !event->can_load_ephemeral_apps) {
-    // Most events can only be dispatched to ephemeral apps that are already
-    // running.
-    ProcessManager* pm = ExtensionSystem::Get(context)->process_manager();
-    if (!pm->GetBackgroundHostForExtension(extension->id()))
-      return false;
-  }
-
   if (!CanDispatchEventToBrowserContext(context, extension, event))
     return false;
 
   LazyBackgroundTaskQueue* queue = ExtensionSystem::Get(
       context)->lazy_background_task_queue();
   if (queue->ShouldEnqueueTask(context, extension)) {
     linked_ptr<Event> dispatched_event(event);
 
     // If there's a dispatch callback, call it now (rather than dispatch time)
     // to avoid lifetime issues. Use a separate copy of the event args, so they
@@ skipping 124 matching lines @@
       NOTREACHED();
       return;
   }
 }
 
 Event::Event(const std::string& event_name,
              scoped_ptr<base::ListValue> event_args)
     : event_name(event_name),
       event_args(event_args.Pass()),
       restrict_to_browser_context(NULL),
-      user_gesture(EventRouter::USER_GESTURE_UNKNOWN),
-      can_load_ephemeral_apps(false) {
+      user_gesture(EventRouter::USER_GESTURE_UNKNOWN) {
   DCHECK(this->event_args.get());
 }
 
 Event::Event(const std::string& event_name,
              scoped_ptr<base::ListValue> event_args,
              BrowserContext* restrict_to_browser_context)
     : event_name(event_name),
       event_args(event_args.Pass()),
       restrict_to_browser_context(restrict_to_browser_context),
-      user_gesture(EventRouter::USER_GESTURE_UNKNOWN),
-      can_load_ephemeral_apps(false) {
+      user_gesture(EventRouter::USER_GESTURE_UNKNOWN) {
   DCHECK(this->event_args.get());
 }
 
 Event::Event(const std::string& event_name,
              scoped_ptr<ListValue> event_args,
              BrowserContext* restrict_to_browser_context,
              const GURL& event_url,
              EventRouter::UserGestureState user_gesture,
              const EventFilteringInfo& filter_info)
     : event_name(event_name),
       event_args(event_args.Pass()),
       restrict_to_browser_context(restrict_to_browser_context),
       event_url(event_url),
       user_gesture(user_gesture),
-      filter_info(filter_info),
-      can_load_ephemeral_apps(false) {
+      filter_info(filter_info) {
   DCHECK(this->event_args.get());
 }
 
 Event::~Event() {}
 
 Event* Event::DeepCopy() {
   Event* copy = new Event(event_name,
                           scoped_ptr<base::ListValue>(event_args->DeepCopy()),
                           restrict_to_browser_context,
                           event_url,
                           user_gesture,
                           filter_info);
   copy->will_dispatch_callback = will_dispatch_callback;
   return copy;
 }
 
 EventListenerInfo::EventListenerInfo(const std::string& event_name,
                                      const std::string& extension_id,
                                      const GURL& listener_url,
                                      content::BrowserContext* browser_context)
     : event_name(event_name),
       extension_id(extension_id),
       listener_url(listener_url),
       browser_context(browser_context) {
 }
 
 }  // namespace extensions