[BlobAsync] Faster shortcuttin, make renderer controller leaky & alive.

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 7580068dff19cda345e3087b6a0e029e7ebf2f96..9151da22e1fe15034507457cb33f09ff18e5413e 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -425,13 +425,14 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // The observers watching our lifetime.
   base::ObserverList<RenderProcessHostObserver> observers_;
 
-  // True if the process can be shut down suddenly.  If this is true, then we're
+  // Refcount of dependencies that need sudden termination disabled. If <= 0,
+  // the process can be shut down suddenly.  If this is <= 0, then we're
   // sure that all the RenderViews in the process can be shutdown suddenly.  If
-  // it's false, then specific RenderViews might still be allowed to be shutdown
+  // it's > 0, then specific RenderViews might still be allowed to be shutdown
   // suddenly by checking their SuddenTerminationAllowed() flag.  This can occur
   // if one WebContents has an unload event listener but another WebContents in
   // the same process doesn't.
-  bool sudden_termination_allowed_;
+  int sudden_termination_blocking_refcount_;
 
   // Set to true if we shouldn't send input events.  We actually do the
   // filtering for this at the render widget level.