Adding UMA for sync IPCs

content/worker/worker_webkitplatformsupport_impl.cc

Index: content/worker/worker_webkitplatformsupport_impl.cc
diff --git a/content/worker/worker_webkitplatformsupport_impl.cc b/content/worker/worker_webkitplatformsupport_impl.cc
index 2f03da85c172a1310c989812f0c9cc76caf5cd77..c4810ee3b8bf1f28866892812d5ada9ec6c5a3fb 100644
--- a/content/worker/worker_webkitplatformsupport_impl.cc
+++ b/content/worker/worker_webkitplatformsupport_impl.cc
@@ -8,12 +8,13 @@
 #include "base/platform_file.h"
 #include "base/utf_string_conversions.h"
 #include "content/common/database_util.h"
+#include "content/common/file_utilities_messages.h"
 #include "content/common/fileapi/webblobregistry_impl.h"
 #include "content/common/fileapi/webfilesystem_impl.h"
-#include "content/common/file_utilities_messages.h"
 #include "content/common/indexed_db/proxy_webidbfactory_impl.h"
 #include "content/common/mime_registry_messages.h"
 #include "content/common/webmessageportchannel_impl.h"
+#include "content/public/browser/user_metrics.h"

[jochen (gone - plz use gerrit), 2012/05/30 08:28:09]

you can't include browser headers in worker or renderer.

Instead, you need to send a ViewHostMsg_UserMetrics_RecordAction IPC to the
browser. For the worker, you'll need to add a WorkerHostMsg

Alternatively, and maybe better, can you record the metric in the browser when
you receive a sync ipc?

 #include "content/worker/worker_thread.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "net/base/mime_util.h"
@@ -50,6 +51,8 @@ class WorkerWebKitPlatformSupportImpl::FileUtilities
 };
 
 static bool SendSyncMessageFromAnyThread(IPC::SyncMessage* msg) {
+  content::RecordAction(UserMetricsAction("SendSyncIPC_Worker"));
+
   WorkerThread* worker_thread = WorkerThread::current();
   if (worker_thread)
     return worker_thread->Send(msg);