Bug 1442313 part 3. Expose, test-only, getJSTestingFunctions() in workers. r=bkelly

MozReview-Commit-ID: LiErRvJ6CTH

dom/webidl/WorkerGlobalScope.webidl

@@ -43,4 +43,7 @@ partial interface WorkerGlobalScope {
   // XXXbz no spec for this yet, because the webperf WG is a bit dysfunctional
   [Constant, Cached]
   readonly attribute Performance performance;
+
+  [Func="WorkerGlobalScope::IsInAutomation", Throws]
+  object getJSTestingFunctions();
 };

dom/workers/WorkerScope.cpp

@@ -7,6 +7,7 @@
 #include "WorkerScope.h"
 
 #include "jsapi.h"
+#include "jsfriendapi.h"
 #include "mozilla/EventListenerManager.h"
 #include "mozilla/dom/BindingDeclarations.h"
 #include "mozilla/dom/Clients.h"
@@ -400,6 +401,26 @@ WorkerGlobalScope::GetPerformance()
   return mPerformance;
 }
 
+bool
+WorkerGlobalScope::IsInAutomation(JSContext* aCx, JSObject* /* unused */)
+{
+  return GetWorkerPrivateFromContext(aCx)->IsInAutomation();
+}
+
+void
+WorkerGlobalScope::GetJSTestingFunctions(JSContext* aCx,
+                                         JS::MutableHandle<JSObject*> aFunctions,
+                                         ErrorResult& aRv)
+{
+  JSObject* obj = js::GetTestingFunctions(aCx);
+  if (!obj) {
+    aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
+    return;
+  }
+
+  aFunctions.set(obj);
+}
+
 already_AddRefed<Promise>
 WorkerGlobalScope::Fetch(const RequestOrUSVString& aInput,
                          const RequestInit& aInit,

dom/workers/WorkerScope.h

@@ -161,6 +161,11 @@ public:
     return mPerformance;
   }
 
+  static bool IsInAutomation(JSContext* aCx, JSObject* /* unused */);
+  void GetJSTestingFunctions(JSContext* aCx,
+                             JS::MutableHandle<JSObject*> aFunctions,
+                             ErrorResult& aRv);
+
   already_AddRefed<Promise>
   Fetch(const RequestOrUSVString& aInput, const RequestInit& aInit,
         CallerType aCallerType, ErrorResult& aRv);