Split out tests of private scripts from Internals to PrivateScriptTest

Source/core/testing/Internals.cpp

Index: Source/core/testing/Internals.cpp
diff --git a/Source/core/testing/Internals.cpp b/Source/core/testing/Internals.cpp
index 7b4715a499a2abc953f9a07590211c7ebf78e0d3..54d67ab63101da0a6ef1f333a9e86696b2dfc027 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -116,6 +116,7 @@
 #include "core/testing/LayerRectList.h"
 #include "core/testing/MallocStatistics.h"
 #include "core/testing/MockPagePopupDriver.h"
+#include "core/testing/PrivateScriptTest.h"
 #include "core/testing/TypeConversions.h"
 #include "core/workers/WorkerThread.h"
 #include "platform/Cursor.h"
@@ -1948,6 +1949,11 @@ PassRefPtrWillBeRawPtr<TypeConversions> Internals::typeConversions() const
     return TypeConversions::create();
 }
 
+PrivateScriptTest* Internals::privateScriptTest() const
+{
+    return PrivateScriptTest::create();
+}
+
 Vector<String> Internals::getReferencedFilePaths() const
 {
     return frame()->loader().currentItem()->getReferencedFilePaths();