Fix URLSearchParams to use the right encoding algorithm

third_party/WebKit/Source/platform/network/FormDataEncoder.h

 /*
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 16 matching lines @@
 
 namespace WTF {
 class TextEncoding;
 }
 
 namespace blink {
 
 class PLATFORM_EXPORT FormDataEncoder {
     STATIC_ONLY(FormDataEncoder);
 public:
+    // Specifies how to handle CRs and LFs. When NormalizeCRLF is passed, the
+    // method replaces the following characters with a CRLF pair:
+    // - a CR not followed by an LF
+    // - an LF not preceded by a CR
+    enum Mode {
+        NormalizeCRLF,
+        DoNotNormalizeCRLF
+    };
+
     static WTF::TextEncoding encodingFromAcceptCharset(const String& acceptCharset, const WTF::TextEncoding& fallbackEncoding);
 
     // Helper functions used by HTMLFormElement for multi-part form data
     static Vector<char> generateUniqueBoundaryString();
     static void beginMultiPartHeader(Vector<char>&, const CString& boundary, const CString& name);
     static void addBoundaryToMultiPartHeader(Vector<char>&, const CString& boundary, bool isLastBoundary = false);
     static void addFilenameToMultiPartHeader(Vector<char>&, const WTF::TextEncoding&, const String& filename);
     static void addContentTypeToMultiPartHeader(Vector<char>&, const CString& mimeType);
     static void finishMultiPartHeader(Vector<char>&);
 
-    // Helper functions used by HTMLFormElement for non multi-part form data
-    static void addKeyValuePairAsFormData(Vector<char>&, const CString& key, const CString& value, EncodedFormData::EncodingType = EncodedFormData::FormURLEncoded);
-    static void encodeStringAsFormData(Vector<char>&, const CString&);
+    // Helper functions used by HTMLFormElement for non multi-part form data. Mode
+    // argument is not used for TextPlain type.
+    static void addKeyValuePairAsFormData(Vector<char>&, const CString& key, const CString& value, EncodedFormData::EncodingType = EncodedFormData::FormURLEncoded, Mode = NormalizeCRLF);
+    static void encodeStringAsFormData(Vector<char>&, const CString&, Mode);
 };
 
 } // namespace blink
 
 #endif