Refactored app cache clear on exit code to happen in the object owning the files.

chrome/browser/profiles/profile_impl.cc

Index: chrome/browser/profiles/profile_impl.cc
diff --git a/chrome/browser/profiles/profile_impl.cc b/chrome/browser/profiles/profile_impl.cc
index 2c610e19ec17d86c1f589e2d918a4922306e283e..1edaa24f43df6a44f1a185132d730d95d3b07340 100644
--- a/chrome/browser/profiles/profile_impl.cc
+++ b/chrome/browser/profiles/profile_impl.cc
@@ -579,7 +579,8 @@ ChromeAppCacheService* ProfileImpl::GetAppCacheService() {
         NewRunnableMethod(appcache_service_.get(),
                           &ChromeAppCacheService::InitializeOnIOThread,
                           GetPath(), IsOffTheRecord(),
-                          make_scoped_refptr(GetHostContentSettingsMap())));
+                          make_scoped_refptr(GetHostContentSettingsMap()),
+                          clear_local_state_on_exit_));
   }
   return appcache_service_;
 }
@@ -1222,6 +1223,9 @@ void ProfileImpl::Observe(NotificationType type,
       if (webkit_context_)
         webkit_context_->set_clear_local_state_on_exit(
             clear_local_state_on_exit_);
+      if (appcache_service_)
+        appcache_service_->SetClearLocalStateOnExit(
+            clear_local_state_on_exit_);
     }
   } else if (NotificationType::THEME_INSTALLED == type) {
     DCHECK_EQ(Source<Profile>(source).ptr(), GetOriginalProfile());