Report utility process JS memory in task manager.

content/public/browser/utility_process_host.h

Index: content/public/browser/utility_process_host.h
diff --git a/content/public/browser/utility_process_host.h b/content/public/browser/utility_process_host.h
index 36b28509dc94290f22e6e367c9352c9f17018ae4..99a6b3cac8836f159f442be2e754196bd4e2e2d2 100644
--- a/content/public/browser/utility_process_host.h
+++ b/content/public/browser/utility_process_host.h
@@ -80,8 +80,8 @@ class UtilityProcessHost : public IPC::Sender,
   // Starts the utility process in Mojo mode.
   virtual bool StartMojoMode() = 0;
 
-  // Returns the ServiceRegistry for this process. Only valid to call this if
-  // the process was started with StartMojoMode().
+  // Returns the ServiceRegistry for this process. Will return nullptr if
+  // the process was not started with StartMojoMode().
   virtual ServiceRegistry* GetServiceRegistry() = 0;
 
   // Set the name of the process to appear in the task manager.