Indicate in the tab UI if appcache creation was blocked by privacy settings.

webkit/appcache/appcache_update_job_unittest.cc

Index: webkit/appcache/appcache_update_job_unittest.cc
diff --git a/webkit/appcache/appcache_update_job_unittest.cc b/webkit/appcache/appcache_update_job_unittest.cc
index 2ce47b1b100ec889fe9c609beffa82176ebc7759..243d3c3a355e2c1bc197a79b8ebbf6483e69bb8d 100644
--- a/webkit/appcache/appcache_update_job_unittest.cc
+++ b/webkit/appcache/appcache_update_job_unittest.cc
@@ -50,6 +50,9 @@ class MockFrontend : public AppCacheFrontend {
     }
   }
 
+  virtual void OnContentBlocked(int host_id) {
+  }
+
   void AddExpectedEvent(const std::vector<int>& host_ids, EventID event_id) {
     expected_events_.push_back(RaisedEvent(host_ids, event_id));
   }
@@ -2559,6 +2562,9 @@ class AppCacheUpdateJobTest : public testing::Test,
     UpdateFinished();
   }
 
+  void OnContentBlocked(AppCacheGroup* group) {
+  }
+
   void UpdateFinished() {
     // We unwind the stack prior to finishing up to let stack-based objects
     // get deleted.