Remove ENABLE(INSTANCE_COUNTER) code.

third_party/WebKit/Source/platform/wtf/RefCounted.h

Index: third_party/WebKit/Source/platform/wtf/RefCounted.h
diff --git a/third_party/WebKit/Source/platform/wtf/RefCounted.h b/third_party/WebKit/Source/platform/wtf/RefCounted.h
index 7150d9b455b81d9958e992e640c2908909f06f5a..78084693f529453b6e8aba93ac5011a69e3e19b7 100644
--- a/third_party/WebKit/Source/platform/wtf/RefCounted.h
+++ b/third_party/WebKit/Source/platform/wtf/RefCounted.h
@@ -26,10 +26,6 @@
 #include "platform/wtf/Noncopyable.h"
 #include "platform/wtf/WTFExport.h"
 
-#if ENABLE(INSTANCE_COUNTER)
-#include "platform/wtf/InstanceCounter.h"
-#endif
-
 #if DCHECK_IS_ON()
 #define CHECK_REF_COUNTED_LIFECYCLE 1
 #include "platform/wtf/ThreadRestrictionVerifier.h"
@@ -155,13 +151,7 @@ class RefCounted : public RefCountedBase {
   }
 
  protected:
-#if ENABLE(INSTANCE_COUNTER)
-  RefCounted() { incrementInstanceCount<T>(static_cast<T*>(this)); }
-
-  ~RefCounted() { decrementInstanceCount<T>(static_cast<T*>(this)); }
-#else
   RefCounted() {}
-#endif
 };
 
 // Allows subclasses to use the default copy constructor.