Issue #1751 -- Remove XP_MACOSX conditionals from /dom

dom/base/nsWindowRoot.cpp

@@ -37,14 +37,8 @@ nsWindowRoot::nsWindowRoot(nsPIDOMWindowOuter* aWindow)
   mWindow = aWindow;
   MOZ_ASSERT(mWindow->IsOuterWindow());
 
-  // Keyboard indicators are not shown on Mac by default.
-#if defined(XP_MACOSX)
-  mShowAccelerators = false;
-  mShowFocusRings = false;
-#else
   mShowAccelerators = true;
   mShowFocusRings = true;
-#endif
 }
 
 nsWindowRoot::~nsWindowRoot()