Make classes and structures in core/workers, core/timing and core/testing fast-allocated.

Source/core/testing/InternalSettings.h

Index: Source/core/testing/InternalSettings.h
diff --git a/Source/core/testing/InternalSettings.h b/Source/core/testing/InternalSettings.h
index 2a872abc03ee9f07c20e3ac78f78dc4679dc315b..46b68d1f24174ffdcc0e3fe28cf606ebfa77bc70 100644
--- a/Source/core/testing/InternalSettings.h
+++ b/Source/core/testing/InternalSettings.h
@@ -34,6 +34,7 @@
 #include "platform/graphics/ImageAnimationPolicy.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebDisplayMode.h"
+#include "wtf/Allocator.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
@@ -55,6 +56,7 @@ class InternalSettings final : public InternalSettingsGenerated {
     DEFINE_WRAPPERTYPEINFO();
 public:
     class Backup {
+        DISALLOW_ALLOCATION();
     public:
         explicit Backup(Settings*);
         void restoreTo(Settings*);