Move Firefox importer's INI parser to c/browser/common.

chrome/browser/common/ini_parser.h

+// Copyright 2013 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_BROWSER_COMMON_INI_PARSER_H_
+#define CHROME_BROWSER_COMMON_INI_PARSER_H_
+
+#include <string>
+
+#include "base/values.h"
+
+// A simple class to parse INI files in a string. Users should inherit from this
+// class and override the HandlePair method.
+class INIParser {
+ public:
+  INIParser();
+  virtual ~INIParser();
+
+  // Pass by value because we will be sanitizing the string before parsing.
+  void Parse(const std::string& content);
+ private:
+  virtual void HandlePair(const std::string& section, const std::string& key,
+                          const std::string& value) = 0;
+
+  DISALLOW_COPY_AND_ASSIGN(INIParser);
+};
+
+class DictionaryValueINIParser : public INIParser {
+ public:
+  DictionaryValueINIParser();
+  virtual ~DictionaryValueINIParser();
+
+  const DictionaryValue& root() const { return root_; }
+ private:
+  virtual void HandlePair(const std::string& section, const std::string& key,
+                          const std::string& value) OVERRIDE;
+
+  DictionaryValue root_;
+
+  DISALLOW_COPY_AND_ASSIGN(DictionaryValueINIParser);
+};
+
+#endif  // CHROME_BROWSER_COMMON_INI_PARSER_H_