TaskScheduler: migrate appcache database over to use it.

content/browser/appcache/appcache_update_job_unittest.cc

Index: content/browser/appcache/appcache_update_job_unittest.cc
diff --git a/content/browser/appcache/appcache_update_job_unittest.cc b/content/browser/appcache/appcache_update_job_unittest.cc
index bf3752e5e2b12a92ac579e29392613426f28cb63..078a640e9cb6efa70df8e93876814e90e1e505d9 100644
--- a/content/browser/appcache/appcache_update_job_unittest.cc
+++ b/content/browser/appcache/appcache_update_job_unittest.cc
@@ -14,11 +14,11 @@
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
-#include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/waitable_event.h"
+#include "base/test/scoped_task_environment.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "content/browser/appcache/appcache_group.h"
@@ -3415,6 +3415,7 @@ class AppCacheUpdateJobTest : public testing::Test,
     MANIFEST_WITH_INTERCEPT
   };
 
+  base::test::ScopedTaskEnvironment scoped_task_environment_;
   std::unique_ptr<IOThread> io_thread_;
 
   std::unique_ptr<MockAppCacheService> service_;