Move weborigin/ under platform/ so that it may someday call platform APIs

Source/weborigin/KURL.cpp

Index: Source/weborigin/KURL.cpp
diff --git a/Source/weborigin/KURL.cpp b/Source/weborigin/KURL.cpp
deleted file mode 100644
index 3347a1c34b394262974decec28345fc6c876a7c9..0000000000000000000000000000000000000000
--- a/Source/weborigin/KURL.cpp
+++ /dev/null
@@ -1,886 +0,0 @@
-/*
- * Copyright (C) 2004, 2007, 2008, 2011, 2012 Apple Inc. All rights reserved.
- * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
- * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "weborigin/KURL.h"
-
-#include "weborigin/KnownPorts.h"
-#include "wtf/HashMap.h"
-#include "wtf/StdLibExtras.h"
-#include "wtf/text/CString.h"
-#include "wtf/text/StringHash.h"
-#include "wtf/text/StringUTF8Adaptor.h"
-#include "wtf/text/TextEncoding.h"
-#include <algorithm>
-#include <url/url_util.h>
-#ifndef NDEBUG
-#include <stdio.h>
-#endif
-
-namespace WebCore {
-
-static const int maximumValidPortNumber = 0xFFFE;
-static const int invalidPortNumber = 0xFFFF;
-
-static void assertProtocolIsGood(const char* protocol)
-{
-#ifndef NDEBUG
-    const char* p = protocol;
-    while (*p) {
-        ASSERT(*p > ' ' && *p < 0x7F && !(*p >= 'A' && *p <= 'Z'));
-        ++p;
-    }
-#endif
-}
-
-// Note: You must ensure that |spec| is a valid canonicalized URL before calling this function.
-static const char* asURLChar8Subtle(const String& spec)
-{
-    ASSERT(spec.is8Bit());
-    // characters8 really return characters in Latin-1, but because we canonicalize
-    // URL strings, we know that everything before the fragment identifier will
-    // actually be ASCII, which means this cast is safe as long as you don't look
-    // at the fragment component.
-    return reinterpret_cast<const char*>(spec.characters8());
-}
-
-// Returns the characters for the given string, or a pointer to a static empty
-// string if the input string is null. This will always ensure we have a non-
-// null character pointer since ReplaceComponents has special meaning for null.
-static const char* charactersOrEmpty(const StringUTF8Adaptor& string)
-{
-    static const char zero = 0;
-    return string.data() ? string.data() : &zero;
-}
-
-static bool isSchemeFirstChar(char c)
-{
-    return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
-}
-
-static bool isSchemeChar(char c)
-{
-    return isSchemeFirstChar(c) || (c >= '0' && c <= '9') || c == '.' || c == '-' || c == '+';
-}
-
-static bool isUnicodeEncoding(const WTF::TextEncoding* encoding)
-{
-    return encoding->encodingForFormSubmission() == UTF8Encoding();
-}
-
-namespace {
-
-class KURLCharsetConverter : public url_canon::CharsetConverter {
-public:
-    // The encoding parameter may be 0, but in this case the object must not be called.
-    explicit KURLCharsetConverter(const WTF::TextEncoding* encoding)
-        : m_encoding(encoding)
-    {
-    }
-
-    virtual void ConvertFromUTF16(const url_parse::UTF16Char* input, int inputLength, url_canon::CanonOutput* output)
-    {
-        CString encoded = m_encoding->normalizeAndEncode(String(input, inputLength), WTF::URLEncodedEntitiesForUnencodables);
-        output->Append(encoded.data(), static_cast<int>(encoded.length()));
-    }
-
-private:
-    const WTF::TextEncoding* m_encoding;
-};
-
-} // namespace
-
-bool isValidProtocol(const String& protocol)
-{
-    // RFC3986: ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
-    if (protocol.isEmpty())
-        return false;
-    if (!isSchemeFirstChar(protocol[0]))
-        return false;
-    unsigned protocolLength = protocol.length();
-    for (unsigned i = 1; i < protocolLength; i++) {
-        if (!isSchemeChar(protocol[i]))
-            return false;
-    }
-    return true;
-}
-
-String KURL::strippedForUseAsReferrer() const
-{
-    KURL referrer(*this);
-    referrer.setUser(String());
-    referrer.setPass(String());
-    referrer.removeFragmentIdentifier();
-    return referrer.string();
-}
-
-bool KURL::isLocalFile() const
-{
-    // Including feed here might be a bad idea since drag and drop uses this check
-    // and including feed would allow feeds to potentially let someone's blog
-    // read the contents of the clipboard on a drag, even without a drop.
-    // Likewise with using the FrameLoader::shouldTreatURLAsLocal() function.
-    return protocolIs("file");
-}
-
-bool protocolIsJavaScript(const String& url)
-{
-    return protocolIs(url, "javascript");
-}
-
-const KURL& blankURL()
-{
-    DEFINE_STATIC_LOCAL(KURL, staticBlankURL, (ParsedURLString, "about:blank"));
-    return staticBlankURL;
-}
-
-bool KURL::isBlankURL() const
-{
-    return protocolIs("about");
-}
-
-String KURL::elidedString() const
-{
-    if (string().length() <= 1024)
-        return string();
-
-    return string().left(511) + "..." + string().right(510);
-}
-
-// Initializes with a string representing an absolute URL. No encoding
-// information is specified. This generally happens when a KURL is converted
-// to a string and then converted back. In this case, the URL is already
-// canonical and in proper escaped form so needs no encoding. We treat it as
-// UTF-8 just in case.
-KURL::KURL(ParsedURLStringTag, const String& url)
-{
-    if (!url.isNull())
-        init(KURL(), url, 0);
-    else {
-        // WebCore expects us to preserve the nullness of strings when this
-        // constructor is used. In all other cases, it expects a non-null
-        // empty string, which is what init() will create.
-        m_isValid = false;
-        m_protocolIsInHTTPFamily = false;
-    }
-}
-
-KURL KURL::createIsolated(ParsedURLStringTag, const String& url)
-{
-    // FIXME: We should be able to skip this extra copy and created an
-    // isolated KURL more efficiently.
-    return KURL(ParsedURLString, url).copy();
-}
-
-// Constructs a new URL given a base URL and a possibly relative input URL.
-// This assumes UTF-8 encoding.
-KURL::KURL(const KURL& base, const String& relative)
-{
-    init(base, relative, 0);
-}
-
-// Constructs a new URL given a base URL and a possibly relative input URL.
-// Any query portion of the relative URL will be encoded in the given encoding.
-KURL::KURL(const KURL& base, const String& relative, const WTF::TextEncoding& encoding)
-{
-    init(base, relative, &encoding.encodingForFormSubmission());
-}
-
-KURL::KURL(const AtomicString& canonicalString, const url_parse::Parsed& parsed, bool isValid)
-    : m_isValid(isValid)
-    , m_protocolIsInHTTPFamily(false)
-    , m_parsed(parsed)
-    , m_string(canonicalString)
-{
-    initProtocolIsInHTTPFamily();
-    initInnerURL();
-}
-
-KURL::KURL(WTF::HashTableDeletedValueType)
-    : m_isValid(false)
-    , m_protocolIsInHTTPFamily(false)
-    , m_string(WTF::HashTableDeletedValue)
-{
-}
-
-KURL::KURL(const KURL& other)
-    : m_isValid(other.m_isValid)
-    , m_protocolIsInHTTPFamily(other.m_protocolIsInHTTPFamily)
-    , m_parsed(other.m_parsed)
-    , m_string(other.m_string)
-{
-    if (other.m_innerURL.get())
-        m_innerURL = adoptPtr(new KURL(other.m_innerURL->copy()));
-}
-
-KURL& KURL::operator=(const KURL& other)
-{
-    m_isValid = other.m_isValid;
-    m_protocolIsInHTTPFamily = other.m_protocolIsInHTTPFamily;
-    m_parsed = other.m_parsed;
-    m_string = other.m_string;
-    if (other.m_innerURL)
-        m_innerURL = adoptPtr(new KURL(other.m_innerURL->copy()));
-    else
-        m_innerURL.clear();
-    return *this;
-}
-
-KURL KURL::copy() const
-{
-    KURL result;
-    result.m_isValid = m_isValid;
-    result.m_protocolIsInHTTPFamily = m_protocolIsInHTTPFamily;
-    result.m_parsed = m_parsed;
-    result.m_string = m_string.isolatedCopy();
-    if (result.m_innerURL)
-        result.m_innerURL = adoptPtr(new KURL(m_innerURL->copy()));
-    return result;
-}
-
-bool KURL::isNull() const
-{
-    return m_string.isNull();
-}
-
-bool KURL::isEmpty() const
-{
-    return m_string.isEmpty();
-}
-
-bool KURL::isValid() const
-{
-    return m_isValid;
-}
-
-bool KURL::hasPort() const
-{
-    return hostEnd() < pathStart();
-}
-
-bool KURL::protocolIsInHTTPFamily() const
-{
-    return m_protocolIsInHTTPFamily;
-}
-
-bool KURL::hasPath() const
-{
-    // Note that http://www.google.com/" has a path, the path is "/". This can
-    // return false only for invalid or nonstandard URLs.
-    return m_parsed.path.len >= 0;
-}
-
-// We handle "parameters" separated by a semicolon, while KURL.cpp does not,
-// which can lead to different results in some cases.
-String KURL::lastPathComponent() const
-{
-    if (!m_isValid)
-        return stringForInvalidComponent();
-    ASSERT(!m_string.isNull());
-
-    // When the output ends in a slash, WebCore has different expectations than
-    // the GoogleURL library. For "/foo/bar/" the library will return the empty
-    // string, but WebCore wants "bar".
-    url_parse::Component path = m_parsed.path;
-    if (path.len > 0 && m_string[path.end() - 1] == '/')
-        path.len--;
-
-    url_parse::Component file;
-    if (m_string.is8Bit())
-        url_parse::ExtractFileName(asURLChar8Subtle(m_string), path, &file);
-    else
-        url_parse::ExtractFileName(m_string.characters16(), path, &file);
-
-    // Bug: https://bugs.webkit.org/show_bug.cgi?id=21015 this function returns
-    // a null string when the path is empty, which we duplicate here.
-    if (!file.is_nonempty())
-        return String();
-    return componentString(file);
-}
-
-String KURL::protocol() const
-{
-    return componentString(m_parsed.scheme);
-}
-
-String KURL::host() const
-{
-    return componentString(m_parsed.host);
-}
-
-// Returns 0 when there is no port.
-//
-// We treat URL's with out-of-range port numbers as invalid URLs, and they will
-// be rejected by the canonicalizer. KURL.cpp will allow them in parsing, but
-// return invalidPortNumber from this port() function, so we mirror that behavior here.
-unsigned short KURL::port() const
-{
-    if (!m_isValid || m_parsed.port.len <= 0)
-        return 0;
-    ASSERT(!m_string.isNull());
-    int port = m_string.is8Bit() ?
-        url_parse::ParsePort(asURLChar8Subtle(m_string), m_parsed.port) :
-        url_parse::ParsePort(m_string.characters16(), m_parsed.port);
-    ASSERT(port != url_parse::PORT_UNSPECIFIED); // Checked port.len <= 0 before.
-
-    if (port == url_parse::PORT_INVALID || port > maximumValidPortNumber) // Mimic KURL::port()
-        port = invalidPortNumber;
-
-    return static_cast<unsigned short>(port);
-}
-
-String KURL::pass() const
-{
-    // Bug: https://bugs.webkit.org/show_bug.cgi?id=21015 this function returns
-    // a null string when the password is empty, which we duplicate here.
-    if (!m_parsed.password.is_nonempty())
-        return String();
-    return componentString(m_parsed.password);
-}
-
-String KURL::user() const
-{
-    return componentString(m_parsed.username);
-}
-
-String KURL::fragmentIdentifier() const
-{
-    // Empty but present refs ("foo.com/bar#") should result in the empty
-    // string, which componentString will produce. Nonexistent refs
-    // should be the null string.
-    if (!m_parsed.ref.is_valid())
-        return String();
-    return componentString(m_parsed.ref);
-}
-
-bool KURL::hasFragmentIdentifier() const
-{
-    return m_parsed.ref.len >= 0;
-}
-
-String KURL::baseAsString() const
-{
-    // FIXME: There is probably a more efficient way to do this?
-    return m_string.left(pathAfterLastSlash());
-}
-
-String KURL::query() const
-{
-    if (m_parsed.query.len >= 0)
-        return componentString(m_parsed.query);
-
-    // Bug: https://bugs.webkit.org/show_bug.cgi?id=21015 this function returns
-    // an empty string when the query is empty rather than a null (not sure
-    // which is right).
-    // Returns a null if the query is not specified, instead of empty.
-    if (m_parsed.query.is_valid())
-        return emptyString();
-    return String();
-}
-
-String KURL::path() const
-{
-    return componentString(m_parsed.path);
-}
-
-bool KURL::setProtocol(const String& protocol)
-{
-    // Firefox and IE remove everything after the first ':'.
-    int separatorPosition = protocol.find(':');
-    String newProtocol = protocol.substring(0, separatorPosition);
-    StringUTF8Adaptor newProtocolUTF8(newProtocol);
-
-    // If KURL is given an invalid scheme, it returns failure without modifying
-    // the URL at all. This is in contrast to most other setters which modify
-    // the URL and set "m_isValid."
-    url_canon::RawCanonOutputT<char> canonProtocol;
-    url_parse::Component protocolComponent;
-    if (!url_canon::CanonicalizeScheme(newProtocolUTF8.data(), url_parse::Component(0, newProtocolUTF8.length()), &canonProtocol, &protocolComponent)
-        || !protocolComponent.is_nonempty())
-        return false;
-
-    url_canon::Replacements<char> replacements;
-    replacements.SetScheme(charactersOrEmpty(newProtocolUTF8), url_parse::Component(0, newProtocolUTF8.length()));
-    replaceComponents(replacements);
-
-    // isValid could be false but we still return true here. This is because
-    // WebCore or JS scripts can build up a URL by setting individual
-    // components, and a JS exception is based on the return value of this
-    // function. We want to throw the exception and stop the script only when
-    // its trying to set a bad protocol, and not when it maybe just hasn't
-    // finished building up its final scheme.
-    return true;
-}
-
-void KURL::setHost(const String& host)
-{
-    StringUTF8Adaptor hostUTF8(host);
-    url_canon::Replacements<char> replacements;
-    replacements.SetHost(charactersOrEmpty(hostUTF8), url_parse::Component(0, hostUTF8.length()));
-    replaceComponents(replacements);
-}
-
-static String parsePortFromStringPosition(const String& value, unsigned portStart)
-{
-    // "008080junk" needs to be treated as port "8080" and "000" as "0".
-    size_t length = value.length();
-    unsigned portEnd = portStart;
-    while (isASCIIDigit(value[portEnd]) && portEnd < length)
-        ++portEnd;
-    while (value[portStart] == '0' && portStart < portEnd - 1)
-        ++portStart;
-
-    // Required for backwards compat.
-    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=23463
-    if (portStart == portEnd)
-        return "0";
-
-    return value.substring(portStart, portEnd - portStart);
-}
-
-void KURL::setHostAndPort(const String& hostAndPort)
-{
-    size_t separator = hostAndPort.find(':');
-    if (!separator)
-        return;
-
-    if (separator == kNotFound) {
-        url_canon::Replacements<char> replacements;
-        StringUTF8Adaptor hostUTF8(hostAndPort);
-        replacements.SetHost(charactersOrEmpty(hostUTF8), url_parse::Component(0, hostUTF8.length()));
-        replaceComponents(replacements);
-        return;
-    }
-
-    String host = hostAndPort.substring(0, separator);
-    String port = parsePortFromStringPosition(hostAndPort, separator + 1);
-
-    StringUTF8Adaptor hostUTF8(host);
-    StringUTF8Adaptor portUTF8(port);
-
-    url_canon::Replacements<char> replacements;
-    replacements.SetHost(charactersOrEmpty(hostUTF8), url_parse::Component(0, hostUTF8.length()));
-    replacements.SetPort(charactersOrEmpty(portUTF8), url_parse::Component(0, portUTF8.length()));
-    replaceComponents(replacements);
-}
-
-void KURL::removePort()
-{
-    if (!hasPort())
-        return;
-    url_canon::Replacements<char> replacements;
-    replacements.ClearPort();
-    replaceComponents(replacements);
-}
-
-void KURL::setPort(const String& port)
-{
-    String parsedPort = parsePortFromStringPosition(port, 0);
-    setPort(parsedPort.toUInt());
-}
-
-void KURL::setPort(unsigned short port)
-{
-    if (isDefaultPortForProtocol(port, protocol())) {
-        removePort();
-        return;
-    }
-
-    String portString = String::number(port);
-    ASSERT(portString.is8Bit());
-
-    url_canon::Replacements<char> replacements;
-    replacements.SetPort(reinterpret_cast<const char*>(portString.characters8()), url_parse::Component(0, portString.length()));
-    replaceComponents(replacements);
-}
-
-void KURL::setUser(const String& user)
-{
-    // This function is commonly called to clear the username, which we
-    // normally don't have, so we optimize this case.
-    if (user.isEmpty() && !m_parsed.username.is_valid())
-        return;
-
-    // The canonicalizer will clear any usernames that are empty, so we
-    // don't have to explicitly call ClearUsername() here.
-    StringUTF8Adaptor userUTF8(user);
-    url_canon::Replacements<char> replacements;
-    replacements.SetUsername(charactersOrEmpty(userUTF8), url_parse::Component(0, userUTF8.length()));
-    replaceComponents(replacements);
-}
-
-void KURL::setPass(const String& pass)
-{
-    // This function is commonly called to clear the password, which we
-    // normally don't have, so we optimize this case.
-    if (pass.isEmpty() && !m_parsed.password.is_valid())
-        return;
-
-    // The canonicalizer will clear any passwords that are empty, so we
-    // don't have to explicitly call ClearUsername() here.
-    StringUTF8Adaptor passUTF8(pass);
-    url_canon::Replacements<char> replacements;
-    replacements.SetPassword(charactersOrEmpty(passUTF8), url_parse::Component(0, passUTF8.length()));
-    replaceComponents(replacements);
-}
-
-void KURL::setFragmentIdentifier(const String& fragment)
-{
-    // This function is commonly called to clear the ref, which we
-    // normally don't have, so we optimize this case.
-    if (fragment.isNull() && !m_parsed.ref.is_valid())
-        return;
-
-    StringUTF8Adaptor fragmentUTF8(fragment);
-
-    url_canon::Replacements<char> replacements;
-    if (fragment.isNull())
-        replacements.ClearRef();
-    else
-        replacements.SetRef(charactersOrEmpty(fragmentUTF8), url_parse::Component(0, fragmentUTF8.length()));
-    replaceComponents(replacements);
-}
-
-void KURL::removeFragmentIdentifier()
-{
-    url_canon::Replacements<char> replacements;
-    replacements.ClearRef();
-    replaceComponents(replacements);
-}
-
-void KURL::setQuery(const String& query)
-{
-    StringUTF8Adaptor queryUTF8(query);
-    url_canon::Replacements<char> replacements;
-    if (query.isNull()) {
-        // KURL.cpp sets to null to clear any query.
-        replacements.ClearQuery();
-    } else if (query.length() > 0 && query[0] == '?') {
-        // WebCore expects the query string to begin with a question mark, but
-        // GoogleURL doesn't. So we trim off the question mark when setting.
-        replacements.SetQuery(charactersOrEmpty(queryUTF8), url_parse::Component(1, queryUTF8.length() - 1));
-    } else {
-        // When set with the empty string or something that doesn't begin with
-        // a question mark, KURL.cpp will add a question mark for you. The only
-        // way this isn't compatible is if you call this function with an empty
-        // string. KURL.cpp will leave a '?' with nothing following it in the
-        // URL, whereas we'll clear it.
-        // FIXME We should eliminate this difference.
-        replacements.SetQuery(charactersOrEmpty(queryUTF8), url_parse::Component(0, queryUTF8.length()));
-    }
-    replaceComponents(replacements);
-}
-
-void KURL::setPath(const String& path)
-{
-    // Empty paths will be canonicalized to "/", so we don't have to worry
-    // about calling ClearPath().
-    StringUTF8Adaptor pathUTF8(path);
-    url_canon::Replacements<char> replacements;
-    replacements.SetPath(charactersOrEmpty(pathUTF8), url_parse::Component(0, pathUTF8.length()));
-    replaceComponents(replacements);
-}
-
-String decodeURLEscapeSequences(const String& string)
-{
-    return decodeURLEscapeSequences(string, UTF8Encoding());
-}
-
-// In KURL.cpp's implementation, this is called by every component getter.
-// It will unescape every character, including '\0'. This is scary, and may
-// cause security holes. We never call this function for components, and
-// just return the ASCII versions instead.
-//
-// This function is also used to decode javascript: URLs and as a general
-// purpose unescaping function.
-//
-// FIXME These should be merged to the KURL.cpp implementation.
-String decodeURLEscapeSequences(const String& string, const WTF::TextEncoding& encoding)
-{
-    // FIXME We can probably use KURL.cpp's version of this function
-    // without modification. However, I'm concerned about
-    // https://bugs.webkit.org/show_bug.cgi?id=20559 so am keeping this old
-    // custom code for now. Using their version will also fix the bug that
-    // we ignore the encoding.
-    //
-    // FIXME b/1350291: This does not get called very often. We just convert
-    // first to 8-bit UTF-8, then unescape, then back to 16-bit. This kind of
-    // sucks, and we don't use the encoding properly, which will make some
-    // obscure anchor navigations fail.
-    StringUTF8Adaptor stringUTF8(string);
-    url_canon::RawCanonOutputT<url_parse::UTF16Char> unescaped;
-    url_util::DecodeURLEscapeSequences(stringUTF8.data(), stringUTF8.length(), &unescaped);
-    return StringImpl::create8BitIfPossible(reinterpret_cast<UChar*>(unescaped.data()), unescaped.length());
-}
-
-String encodeWithURLEscapeSequences(const String& notEncodedString)
-{
-    CString utf8 = UTF8Encoding().normalizeAndEncode(notEncodedString, WTF::URLEncodedEntitiesForUnencodables);
-
-    url_canon::RawCanonOutputT<char> buffer;
-    int inputLength = utf8.length();
-    if (buffer.length() < inputLength * 3)
-        buffer.Resize(inputLength * 3);
-
-    url_util::EncodeURIComponent(utf8.data(), inputLength, &buffer);
-    String escaped(buffer.data(), buffer.length());
-    // Unescape '/'; it's safe and much prettier.
-    escaped.replace("%2F", "/");
-    return escaped;
-}
-
-bool KURL::isHierarchical() const
-{
-    if (m_string.isNull() || !m_parsed.scheme.is_nonempty())
-        return false;
-    return m_string.is8Bit() ?
-        url_util::IsStandard(asURLChar8Subtle(m_string), m_parsed.scheme) :
-        url_util::IsStandard(m_string.characters16(), m_parsed.scheme);
-}
-
-#ifndef NDEBUG
-void KURL::print() const
-{
-    printf("%s\n", m_string.utf8().data());
-}
-#endif
-
-bool equalIgnoringFragmentIdentifier(const KURL& a, const KURL& b)
-{
-    // Compute the length of each URL without its ref. Note that the reference
-    // begin (if it exists) points to the character *after* the '#', so we need
-    // to subtract one.
-    int aLength = a.m_string.length();
-    if (a.m_parsed.ref.len >= 0)
-        aLength = a.m_parsed.ref.begin - 1;
-
-    int bLength = b.m_string.length();
-    if (b.m_parsed.ref.len >= 0)
-        bLength = b.m_parsed.ref.begin - 1;
-
-    if (aLength != bLength)
-        return false;
-
-    const String& aString = a.m_string;
-    const String& bString = b.m_string;
-    // FIXME: Abstraction this into a function in WTFString.h.
-    for (int i = 0; i < aLength; ++i) {
-        if (aString[i] != bString[i])
-            return false;
-    }
-    return true;
-}
-
-unsigned KURL::hostStart() const
-{
-    return m_parsed.CountCharactersBefore(url_parse::Parsed::HOST, false);
-}
-
-unsigned KURL::hostEnd() const
-{
-    return m_parsed.CountCharactersBefore(url_parse::Parsed::PORT, true);
-}
-
-unsigned KURL::pathStart() const
-{
-    return m_parsed.CountCharactersBefore(url_parse::Parsed::PATH, false);
-}
-
-unsigned KURL::pathEnd() const
-{
-    return m_parsed.CountCharactersBefore(url_parse::Parsed::QUERY, true);
-}
-
-unsigned KURL::pathAfterLastSlash() const
-{
-    if (m_string.isNull())
-        return 0;
-    if (!m_isValid || !m_parsed.path.is_valid())
-        return m_parsed.CountCharactersBefore(url_parse::Parsed::PATH, false);
-    url_parse::Component filename;
-    if (m_string.is8Bit())
-        url_parse::ExtractFileName(asURLChar8Subtle(m_string), m_parsed.path, &filename);
-    else
-        url_parse::ExtractFileName(m_string.characters16(), m_parsed.path, &filename);
-    return filename.begin;
-}
-
-bool protocolIs(const String& url, const char* protocol)
-{
-    assertProtocolIsGood(protocol);
-    if (url.isNull())
-        return false;
-    if (url.is8Bit())
-        return url_util::FindAndCompareScheme(asURLChar8Subtle(url), url.length(), protocol, 0);
-    return url_util::FindAndCompareScheme(url.characters16(), url.length(), protocol, 0);
-}
-
-void KURL::init(const KURL& base, const String& relative, const WTF::TextEncoding* queryEncoding)
-{
-    if (!relative.isNull() && relative.is8Bit()) {
-        StringUTF8Adaptor relativeUTF8(relative);
-        init(base, relativeUTF8.data(), relativeUTF8.length(), queryEncoding);
-    } else
-        init(base, relative.characters16(), relative.length(), queryEncoding);
-    initProtocolIsInHTTPFamily();
-    initInnerURL();
-}
-
-template <typename CHAR>
-void KURL::init(const KURL& base, const CHAR* relative, int relativeLength, const WTF::TextEncoding* queryEncoding)
-{
-    // As a performance optimization, we do not use the charset converter
-    // if encoding is UTF-8 or other Unicode encodings. Note that this is
-    // per HTML5 2.5.3 (resolving URL). The URL canonicalizer will be more
-    // efficient with no charset converter object because it can do UTF-8
-    // internally with no extra copies.
-
-    // We feel free to make the charset converter object every time since it's
-    // just a wrapper around a reference.
-    KURLCharsetConverter charsetConverterObject(queryEncoding);
-    KURLCharsetConverter* charsetConverter = (!queryEncoding || isUnicodeEncoding(queryEncoding)) ? 0 : &charsetConverterObject;
-
-    StringUTF8Adaptor baseUTF8(base.string());
-
-    url_canon::RawCanonOutputT<char> output;
-    m_isValid = url_util::ResolveRelative(baseUTF8.data(), baseUTF8.length(), base.m_parsed, relative, relativeLength, charsetConverter, &output, &m_parsed);
-
-    // See FIXME in KURLPrivate in the header. If canonicalization has not
-    // changed the string, we can avoid an extra allocation by using assignment.
-    m_string = AtomicString::fromUTF8(output.data(), output.length());
-}
-
-void KURL::initInnerURL()
-{
-    if (!m_isValid) {
-        m_innerURL.clear();
-        return;
-    }
-    if (url_parse::Parsed* innerParsed = m_parsed.inner_parsed())
-        m_innerURL = adoptPtr(new KURL(ParsedURLString, m_string.substring(innerParsed->scheme.begin, innerParsed->Length() - innerParsed->scheme.begin)));
-    else
-        m_innerURL.clear();
-}
-
-template<typename CHAR>
-bool internalProtocolIs(const url_parse::Component& scheme, const CHAR* spec, const char* protocol)
-{
-    const CHAR* begin = spec + scheme.begin;
-    const CHAR* end = begin + scheme.len;
-
-    while (begin != end && *protocol) {
-        ASSERT(toASCIILower(*protocol) == *protocol);
-        if (toASCIILower(*begin++) != *protocol++)
-            return false;
-    }
-
-    // Both strings are equal (ignoring case) if and only if all of the characters were equal,
-    // and the end of both has been reached.
-    return begin == end && !*protocol;
-}
-
-template<typename CHAR>
-bool checkIfProtocolIsInHTTPFamily(const url_parse::Component& scheme, const CHAR* spec)
-{
-    if (scheme.len == 4)
-        return internalProtocolIs(scheme, spec, "http");
-    if (scheme.len == 5)
-        return internalProtocolIs(scheme, spec, "https");
-    return false;
-}
-
-void KURL::initProtocolIsInHTTPFamily()
-{
-    if (!m_isValid) {
-        m_protocolIsInHTTPFamily = false;
-        return;
-    }
-
-    ASSERT(!m_string.isNull());
-    m_protocolIsInHTTPFamily = m_string.is8Bit() ?
-        checkIfProtocolIsInHTTPFamily(m_parsed.scheme, m_string.characters8()) :
-        checkIfProtocolIsInHTTPFamily(m_parsed.scheme, m_string.characters16());
-}
-
-bool KURL::protocolIs(const char* protocol) const
-{
-    assertProtocolIsGood(protocol);
-
-    // JavaScript URLs are "valid" and should be executed even if KURL decides they are invalid.
-    // The free function protocolIsJavaScript() should be used instead.
-    // FIXME: Chromium code needs to be fixed for this assert to be enabled. ASSERT(strcmp(protocol, "javascript"));
-
-    if (m_string.isNull() || m_parsed.scheme.len <= 0)
-        return *protocol == '\0';
-
-    return m_string.is8Bit() ?
-        internalProtocolIs(m_parsed.scheme, m_string.characters8(), protocol) :
-        internalProtocolIs(m_parsed.scheme, m_string.characters16(), protocol);
-}
-
-String KURL::stringForInvalidComponent() const
-{
-    if (m_string.isNull())
-        return String();
-    return emptyString();
-}
-
-String KURL::componentString(const url_parse::Component& component) const
-{
-    if (!m_isValid || component.len <= 0)
-        return stringForInvalidComponent();
-    // begin and len are in terms of bytes which do not match
-    // if string() is UTF-16 and input contains non-ASCII characters.
-    // However, the only part in urlString that can contain non-ASCII
-    // characters is 'ref' at the end of the string. In that case,
-    // begin will always match the actual value and len (in terms of
-    // byte) will be longer than what's needed by 'mid'. However, mid
-    // truncates len to avoid go past the end of a string so that we can
-    // get away without doing anything here.
-    return string().substring(component.begin, component.len);
-}
-
-template<typename CHAR>
-void KURL::replaceComponents(const url_canon::Replacements<CHAR>& replacements)
-{
-    url_canon::RawCanonOutputT<char> output;
-    url_parse::Parsed newParsed;
-
-    StringUTF8Adaptor utf8(m_string);
-    m_isValid = url_util::ReplaceComponents(utf8.data(), utf8.length(), m_parsed, replacements, 0, &output, &newParsed);
-
-    m_parsed = newParsed;
-    m_string = AtomicString::fromUTF8(output.data(), output.length());
-}
-
-bool KURL::isSafeToSendToAnotherThread() const
-{
-    return m_string.isSafeToSendToAnotherThread()
-        && (!m_innerURL || m_innerURL->isSafeToSendToAnotherThread());
-}
-
-} // namespace WebCore