Keep browser process alive while there are platform apps with background pages running.

chrome/browser/sync/test/integration/two_client_apps_sync_test.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 "base/basictypes.h"
+#include "base/command_line.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_sorting.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/profile_sync_service_harness.h"
 #include "chrome/browser/sync/test/integration/apps_helper.h"
 #include "chrome/browser/sync/test/integration/sync_app_helper.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "sync/api/string_ordinal.h"
 
 using apps_helper::AllProfilesHaveSameAppsAsVerifier;
 using apps_helper::CopyNTPOrdinals;
 using apps_helper::DisableApp;
 using apps_helper::EnableApp;
 using apps_helper::FixNTPOrdinalCollisions;
 using apps_helper::GetAppLaunchOrdinalForApp;
 using apps_helper::HasSameAppsAsVerifier;
 using apps_helper::IncognitoDisableApp;
 using apps_helper::IncognitoEnableApp;
 using apps_helper::InstallApp;
 using apps_helper::InstallAppsPendingForSync;
 using apps_helper::InstallPlatformApp;
 using apps_helper::SetAppLaunchOrdinalForApp;
 using apps_helper::SetPageOrdinalForApp;
 using apps_helper::UninstallApp;
+using apps_helper::WaitForPlatformAppsToUnload;
 
 class TwoClientAppsSyncTest : public SyncTest {
  public:
   TwoClientAppsSyncTest() : SyncTest(TWO_CLIENT) {}
 
   virtual ~TwoClientAppsSyncTest() {}
 
+ protected:
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    SyncTest::SetUpCommandLine(command_line);
+    // Make event pages get suspended quicker.
+    command_line->AppendSwitchASCII(switches::kEventPageIdleTime, "1");
+    command_line->AppendSwitchASCII(switches::kEventPageUnloadingTime, "1");
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(TwoClientAppsSyncTest);
 };
 
 IN_PROC_BROWSER_TEST_F(TwoClientAppsSyncTest, StartWithNoApps) {
   ASSERT_TRUE(SetupSync());
 
   ASSERT_TRUE(AllProfilesHaveSameAppsAsVerifier());
 }
 
@@ skipping 53 matching lines @@
   FixNTPOrdinalCollisions(verifier());
 
   ASSERT_TRUE(SetupSync());
 
   ASSERT_TRUE(AwaitQuiescence());
 
   InstallAppsPendingForSync(GetProfile(0));
   InstallAppsPendingForSync(GetProfile(1));
 
   ASSERT_TRUE(AllProfilesHaveSameAppsAsVerifier());
+
+  WaitForPlatformAppsToUnload();
 }
 
 // Install some apps on both clients, then sync.  Then install some apps on only
 // one client, some on only the other, and then sync again.  Both clients should
 // end up with all apps, and the app and page ordinals should be identical.
 IN_PROC_BROWSER_TEST_F(TwoClientAppsSyncTest, InstallDifferentApps) {
   ASSERT_TRUE(SetupClients());
 
   int i = 0;
 
@@ skipping 296 matching lines @@
   verifier()->GetExtensionService()->extension_prefs()->
       extension_sorting()->SetPageOrdinal(extension_misc::kWebStoreAppId,
                                           cws_page_ordinal.CreateAfter());
   ASSERT_TRUE(AwaitQuiescence());
   ASSERT_TRUE(AllProfilesHaveSameAppsAsVerifier());
 }
 
 // TODO(akalin): Add tests exercising:
 //   - Offline installation/uninstallation behavior
 //   - App-specific properties