Support socket endpoint permissions for AppsV2 Socket API.

chrome/common/extensions/permissions/socket_permission_data.h

+// Copyright (c) 2012 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 CHROME_COMMON_EXTENSIONS_PERMISSIONS_SOCKET_PERMISSION_DATA_H_
+#define CHROME_COMMON_EXTENSIONS_PERMISSIONS_SOCKET_PERMISSION_DATA_H_
+
+#include <string>
+
+namespace extensions {
+
+// A pattern that can be used to match socket permission.
+// <socket-permission-pattern>
+//     := <op> | <op> ':' <host> | <op> ':' ':' <port> |
+//        <op> ':' <host> ':' <port>
+// <op> := 'tcp-connect' | 'tcp-listen' | 'udp-bind' | 'udp-send-to'
+// <host> := '*' | '*.' <anychar except '/' and '*'>+
+// <port> := '*' | <port number between 0 and 65535>)
+class SocketPermissionData {
+ public:
+  enum OperationType {
+    NONE = 0,
+    TCP_CONNECT,
+    TCP_LISTEN,
+    UDP_BIND,
+    UDP_SEND_TO,
+  };
+
+  SocketPermissionData();
+  ~SocketPermissionData();
+
+  bool operator<(const SocketPermissionData& rhs) const;

[Mihai Parparita -not on Chrome, 2012/08/10 00:16:16]

The C++ style guide says " In particular, do not overload operator== or
operator< just so that your class can be used as a key in an STL container;
instead, you should create equality and comparison functor types when declaring
the container." (see
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Operat...)

[Peng, 2012/08/13 16:26:10]

Done. Have to keep them. They are also used by std::set_differences and
std::set_includes. I added some comment here.

+  bool operator==(const SocketPermissionData& rhs) const;
+
+  bool Match(OperationType type, const std::string& host, int port) const;
+
+  bool Parse(const std::string& permission);
+
+  const std::string& GetAsString() const;
+
+ private:
+  void Reset();
+
+  OperationType type_;
+  std::string host_;
+  bool match_subdomains_;
+  int port_;
+  mutable std::string spec_;
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_COMMON_EXTENSIONS_PERMISSIONS_SOCKET_PERMISSION_DATA_H_