For debugging, split worker ref count into service worker and shared worker counts

content/browser/renderer_host/render_process_host_impl.h

Index: content/browser/renderer_host/render_process_host_impl.h
diff --git a/content/browser/renderer_host/render_process_host_impl.h b/content/browser/renderer_host/render_process_host_impl.h
index aad3a30c3e4ffb0e12aa8b4ba1a768727f7e3326..a65f5952f3e1c9cd2a5fa6d8c6163ac91da11bdc 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -173,8 +173,10 @@ class CONTENT_EXPORT RenderProcessHostImpl
                                          int cdm_id) const override;
 #endif
   bool IsProcessBackgrounded() const override;
-  void IncrementWorkerRefCount() override;
-  void DecrementWorkerRefCount() override;
+  void IncrementServiceWorkerRefCount() override;
+  void DecrementServiceWorkerRefCount() override;
+  void IncrementSharedWorkerRefCount() override;
+  void DecrementSharedWorkerRefCount() override;
   void PurgeAndSuspend() override;
 
   // IPC::Sender via RenderProcessHost.
@@ -312,6 +314,10 @@ class CONTENT_EXPORT RenderProcessHostImpl
   class ConnectionFilterController;
   class ConnectionFilterImpl;
 
+  int worker_ref_count() {
+    return service_worker_ref_count_ + shared_worker_ref_count_;
+  }
+
   std::unique_ptr<IPC::ChannelProxy> CreateChannelProxy(
       const std::string& channel_id);
 
@@ -417,6 +423,9 @@ class CONTENT_EXPORT RenderProcessHostImpl
   std::unique_ptr<InterfaceRegistryAndroid> interface_registry_android_;
 #endif
 
+  int service_worker_ref_count_;

[jochen (gone - plz use gerrit), 2016/09/05 09:45:15]

what about making them size_t while touching this?

[falken, 2016/09/05 12:06:45]

Done.

+  int shared_worker_ref_count_;
+
   // The registered IPC listener objects. When this list is empty, we should
   // delete ourselves.
   IDMap<IPC::Listener> listeners_;
@@ -538,8 +547,6 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // defined below it so it is destructed first.
   scoped_refptr<PeerConnectionTrackerHost> peer_connection_tracker_host_;
 
-  int worker_ref_count_;
-
   // Records the time when the process starts surviving for workers for UMA.
   base::TimeTicks survive_for_worker_start_time_;