[inspector] use own copy of third_party/inspector_protocol

third_party/inspector_protocol/lib/Allocator_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)}}_Allocator_h
+#define {{"_".join(config.protocol.namespace)}}_Allocator_h
+
+{% for namespace in config.protocol.namespace %}
+namespace {{namespace}} {
+{% endfor %}
+
+enum NotNullTagEnum { NotNullLiteral };
+
+#define PROTOCOL_DISALLOW_NEW()                                 \
+    private:                                                    \
+        void* operator new(size_t) = delete;                    \
+        void* operator new(size_t, NotNullTagEnum, void*) = delete; \
+        void* operator new(size_t, void*) = delete;             \
+    public:
+
+#define PROTOCOL_DISALLOW_COPY(ClassName) \
+    private: \
+        ClassName(const ClassName&) = delete; \
+        ClassName& operator=(const ClassName&) = delete
+
+{% for namespace in config.protocol.namespace %}
+} // namespace {{namespace}}
+{% endfor %}
+
+#endif // !defined({{"_".join(config.protocol.namespace)}}_Allocator_h)