Make classes and structures in core/events and core/fetch fast-allocated.

Source/core/events/PointerIdManager.h

Index: Source/core/events/PointerIdManager.h
diff --git a/Source/core/events/PointerIdManager.h b/Source/core/events/PointerIdManager.h
index de0462b891d72faecb09e888e14260b3ff12343b..53f860ab7f98f3afcb462eab506da97994973e12 100644
--- a/Source/core/events/PointerIdManager.h
+++ b/Source/core/events/PointerIdManager.h
@@ -5,6 +5,7 @@
 #ifndef PointerIdManager_h
 #define PointerIdManager_h
 
+#include "wtf/Allocator.h"
 #include "wtf/ListHashSet.h"
 
 namespace blink {
@@ -13,6 +14,7 @@ namespace blink {
   Helper class for tracking the primary pointer id for each type of PointerEvents.
 */
 class PointerIdManager {
+    DISALLOW_ALLOCATION();
 public:
     // TODO(mustaq): Move this enum to PointerEvent.h? Change the spec to use enums?
     enum PointerType {