Bug 1533302 part 1 - Remove unused XPCWrappedNativeScope::IsDyingScope. r=mccr8

Differential Revision: https://phabricator.services.mozilla.com/D22491

--HG--
extra : moz-landing-system : lando

js/xpconnect/src/XPCWrappedNativeScope.cpp

@@ -90,16 +90,6 @@ XPCWrappedNativeScope::XPCWrappedNativeScope(JS::Compartment* aCompartment,
   mAllowContentXBLScope = !RemoteXULForbidsXBLScope(aFirstGlobal);
 }
 
-// static
-bool XPCWrappedNativeScope::IsDyingScope(XPCWrappedNativeScope* scope) {
-  for (XPCWrappedNativeScope* cur = gDyingScopes; cur; cur = cur->mNext) {
-    if (scope == cur) {
-      return true;
-    }
-  }
-  return false;
-}
-
 bool XPCWrappedNativeScope::GetComponentsJSObject(JS::MutableHandleObject obj) {
   AutoJSContext cx;
   if (!mComponents) {

js/xpconnect/src/xpcprivate.h

@@ -886,8 +886,6 @@ class XPCWrappedNativeScope final {
 
   void AddSizeOfIncludingThis(JSContext* cx, ScopeSizeInfo* scopeSizeInfo);
 
-  static bool IsDyingScope(XPCWrappedNativeScope* scope);
-
   // Gets the appropriate scope object for XBL in this compartment. This method
   // relies on compartment-per-global still (and release-asserts this). The
   // context must be same-realm with this compartment's single global upon