Attach to all RelayProfiler events

Summary: public

Dynamically profile events from RelayProfiler if available. This will expose time spent in Relay in the systraces.

Reviewed By: tadeuzagallo

Differential Revision: D2674215

fb-gh-sync-id: d5f9d529b86d267a80b0cda2223f6a28a08ac385

Libraries/JavaScriptAppEngine/Initialization/InitializeJavaScriptAppEngine.js

@@ -160,7 +160,9 @@ function setUpWebSockets() {
 
 function setUpProfile() {
   if (__DEV__) {
-    require('BridgeProfiling').swizzleReactPerf();
+    var BridgeProfiling = require('BridgeProfiling');
+    BridgeProfiling.swizzleReactPerf();
+    BridgeProfiling.attachToRelayProfiler();
   }
 }