Don't add keep-alives for apps after the app keep-alive service has shut down.

BUG=314729

Review URL: https://codereview.chromium.org/60193005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233462 0039d316-1c4b-4281-b951-d872f2087c98

apps/app_keep_alive_service.cc

@@ -13,7 +13,7 @@
 namespace apps {
 
 AppKeepAliveService::AppKeepAliveService(content::BrowserContext* context)
-    : context_(context) {
+    : context_(context), shut_down_(false) {
   AppLifetimeMonitor* app_lifetime_monitor =
       AppLifetimeMonitorFactory::GetForProfile(static_cast<Profile*>(context));
   app_lifetime_monitor->AddObserver(this);
@@ -30,7 +30,7 @@ void AppKeepAliveService::Shutdown() {
 
 void AppKeepAliveService::OnAppStart(Profile* profile,
                                      const std::string& app_id) {
-  if (profile != context_)
+  if (profile != context_ || shut_down_)
     return;
 
   if (running_apps_.insert(app_id).second)
@@ -53,6 +53,7 @@ void AppKeepAliveService::OnAppDeactivated(Profile* profile,
                                            const std::string& app_id) {}
 
 void AppKeepAliveService::OnChromeTerminating() {
+  shut_down_ = true;
   size_t keep_alives = running_apps_.size();
   running_apps_.clear();
 

apps/app_keep_alive_service.h

@@ -29,6 +29,7 @@ class AppKeepAliveService : public BrowserContextKeyedService,
  private:
   content::BrowserContext* context_;
   std::set<std::string> running_apps_;
+  bool shut_down_;
 
   DISALLOW_COPY_AND_ASSIGN(AppKeepAliveService);
 };

apps/app_keep_alive_service_unittest.cc

@@ -78,6 +78,14 @@ TEST_F(AppKeepAliveServiceUnitTest, StartMoreThanOnce) {
   EXPECT_FALSE(chrome::WillKeepAlive());
 }
 
+// Test that OnAppStart is ignored after the service has been shut down.
+TEST_F(AppKeepAliveServiceUnitTest, StartAfterShutdown) {
+  ASSERT_FALSE(chrome::WillKeepAlive());
+  service_->Shutdown();
+  service_->OnAppStart(&profile_, "foo");
+  EXPECT_FALSE(chrome::WillKeepAlive());
+}
+
 TEST_F(AppKeepAliveServiceUnitTest, MultipleApps) {
   ASSERT_FALSE(chrome::WillKeepAlive());
   service_->OnAppStart(&profile_, "foo");