[DevTools] removed PROTOCOL_ARRAY_LENGTH array

third_party/WebKit/Source/platform/inspector_protocol/lib/Collections_h.template

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef {{"_".join(config.protocol.namespace)}}_Collections_h
 #define {{"_".join(config.protocol.namespace)}}_Collections_h
 
 #include "{{config.protocol.package}}/Forward.h"
 #include <cstddef>
 
@@ skipping 22 matching lines @@
 
 template <class Key, class T> using HashMap = std::unordered_map<Key, T>;
 template <class Key> using HashSet = std::unordered_set<Key>;
 
 {% for namespace in config.protocol.namespace %}
 } // namespace {{namespace}}
 {% endfor %}
 
 #endif // defined(__APPLE__) && !defined(_LIBCPP_VERSION)
 
-// Macro that returns a compile time constant with the length of an array, but gives an error if passed a non-array.
-template<typename T, std::size_t Size> char (&ArrayLengthHelperFunction(T (&)[Size]))[Size];
-// GCC needs some help to deduce a 0 length array.
-#if defined(__GNUC__)
-template<typename T> char (&ArrayLengthHelperFunction(T (&)[0]))[0];
-#endif
-#define PROTOCOL_ARRAY_LENGTH(array) sizeof(::ArrayLengthHelperFunction(array))
-
 #endif // !defined({{"_".join(config.protocol.namespace)}}_Collections_h)