Move web_request directory to //extensions.

chrome/browser/extensions/api/web_request/form_data_parser.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_BROWSER_EXTENSIONS_API_WEB_REQUEST_FORM_DATA_PARSER_H_
-#define CHROME_BROWSER_EXTENSIONS_API_WEB_REQUEST_FORM_DATA_PARSER_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-// Cannot forward declare StringPiece because it is a typedef.
-#include "base/strings/string_piece.h"
-
-namespace net {
-class URLRequest;
-}
-
-namespace extensions {
-
-// Interface for the form data parsers.
-class FormDataParser {
- public:
-  // Result encapsulates name-value pairs returned by GetNextNameValue.
-  class Result {
-   public:
-    Result();
-    ~Result();
-
-    const std::string& name() const { return name_; }
-    const std::string& value() const { return value_; }
-
-    void set_name(base::StringPiece str) { str.CopyToString(&name_); }
-    void set_value(base::StringPiece str) { str.CopyToString(&value_); }
-
-   private:
-    std::string name_;
-    std::string value_;
-
-    DISALLOW_COPY_AND_ASSIGN(Result);
-  };
-
-  virtual ~FormDataParser();
-
-  // Creates a correct parser instance based on the |request|. Returns NULL
-  // on failure.
-  static scoped_ptr<FormDataParser> Create(const net::URLRequest& request);
-
-  // Creates a correct parser instance based on |content_type_header|, the
-  // "Content-Type" request header value. If |content_type_header| is NULL, it
-  // defaults to "application/x-www-form-urlencoded". Returns NULL on failure.
-  static scoped_ptr<FormDataParser> CreateFromContentTypeHeader(
-      const std::string* content_type_header);
-
-  // Returns true if there was some data, it was well formed and all was read.
-  virtual bool AllDataReadOK() = 0;
-
-  // Gets the next name-value pair from the source data and stores it in
-  // |result|. Returns true if a pair was found. Callers must have previously
-  // succesfully called the SetSource method.
-  virtual bool GetNextNameValue(Result* result) = 0;
-
-  // Sets the |source| of the data to be parsed. One form data parser is only
-  // expected to be associated with one source, so generally, SetSource should
-  // be only called once. However, for technical reasons, the source might only
-  // be available in chunks for multipart encoded forms, in which case it is OK
-  // to call SetSource multiple times to add all chunks of a single source. The
-  // ownership of |source| is left with the caller and the source should live
-  // until |this| dies or |this->SetSource()| is called again, whichever comes
-  // sooner. Returns true on success.
-  virtual bool SetSource(base::StringPiece source) = 0;
-
- protected:
-  FormDataParser();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(FormDataParser);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_WEB_REQUEST_FORM_DATA_PARSER_H_