[Offline Pages] Create a event/activity logger

components/offline_pages/background/request_coordinator.cc

Index: components/offline_pages/background/request_coordinator.cc
diff --git a/components/offline_pages/background/request_coordinator.cc b/components/offline_pages/background/request_coordinator.cc
index d5e87d26a47a8fd93aa7af30aa2dacef1ad23837..237af31e72b2f6bfafc3d522740731ac11e5488d 100644
--- a/components/offline_pages/background/request_coordinator.cc
+++ b/components/offline_pages/background/request_coordinator.cc
@@ -151,4 +151,12 @@ void RequestCoordinator::OfflinerDoneCallback(const SavePageRequest& request,
   }
 }
 
+void RequestCoordinator::SetIsLogging(bool should_log) {

[Pete Williamson, 2016/06/24 00:38:31]

I don't see any calls to record logs (for example RecordSavePageRequestUpdated).
 It might be good to add a sample, so I can have a working example to start from
to add more where we want them.

[chili, 2016/06/24 02:45:50]

You don't see any logs because I don't actually know where would be the best
place to record them.  I tentatively put something in the OfflinerDoneCallback
for now. Let me know if you think there's a better place for it.

+  event_logger_.SetIsLogging(should_log);
+}
+
+void RequestCoordinator::GetLogs(std::vector<std::string> logs) {
+  event_logger_.GetLogs(logs);
+}
+
 }  // namespace offline_pages