Apply clang-format with Chromium-style without column limit.

third_party/WebKit/Source/wtf/text/StringImpl.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * 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.
  *
@@ skipping 15 matching lines @@
 #include "wtf/ASCIICType.h"
 #include "wtf/Forward.h"
 #include "wtf/HashMap.h"
 #include "wtf/StringHasher.h"
 #include "wtf/Vector.h"
 #include "wtf/WTFExport.h"
 #include "wtf/text/Unicode.h"
 #include <limits.h>
 
 #if OS(MACOSX)
-typedef const struct __CFString * CFStringRef;
+typedef const struct __CFString* CFStringRef;
 #endif
 
 #ifdef __OBJC__
 @class NSString;
 #endif
 
 namespace WTF {
 
 struct AlreadyHashed;
 struct CStringTranslator;
-template<typename CharacterType> struct HashAndCharactersTranslator;
+template <typename CharacterType>
+struct HashAndCharactersTranslator;
 struct HashAndUTF8CharactersTranslator;
 struct LCharBufferTranslator;
 struct CharBufferFromLiteralDataTranslator;
 struct SubstringTranslator;
 struct UCharBufferTranslator;
-template<typename> class RetainPtr;
+template <typename>
+class RetainPtr;
 
-enum TextCaseSensitivity { TextCaseSensitive, TextCaseInsensitive };
+enum TextCaseSensitivity { TextCaseSensitive,
+                           TextCaseInsensitive };
 
-enum StripBehavior { StripExtraWhiteSpace, DoNotStripWhiteSpace };
+enum StripBehavior { StripExtraWhiteSpace,
+                     DoNotStripWhiteSpace };
 
 typedef bool (*CharacterMatchFunctionPtr)(UChar);
 typedef bool (*IsWhiteSpaceFunctionPtr)(UChar);
 typedef HashMap<unsigned, StringImpl*, AlreadyHashed> StaticStringsTable;
 
 // Define STRING_STATS to turn on run time statistics of string sizes and memory usage
 #undef STRING_STATS
 
 #ifdef STRING_STATS
 struct StringStats {
-    inline void add8BitString(unsigned length)
-    {
-        ++m_totalNumberStrings;
-        ++m_number8BitStrings;
-        m_total8BitData += length;
-    }
+  inline void add8BitString(unsigned length) {
+    ++m_totalNumberStrings;
+    ++m_number8BitStrings;
+    m_total8BitData += length;
+  }
 
-    inline void add16BitString(unsigned length)
-    {
-        ++m_totalNumberStrings;
-        ++m_number16BitStrings;
-        m_total16BitData += length;
-    }
+  inline void add16BitString(unsigned length) {
+    ++m_totalNumberStrings;
+    ++m_number16BitStrings;
+    m_total16BitData += length;
+  }
 
-    void removeString(StringImpl*);
-    void printStats();
+  void removeString(StringImpl*);
+  void printStats();
 
-    static const unsigned s_printStringStatsFrequency = 5000;
-    static unsigned s_stringRemovesTillPrintStats;
+  static const unsigned s_printStringStatsFrequency = 5000;
+  static unsigned s_stringRemovesTillPrintStats;
 
-    unsigned m_totalNumberStrings;
-    unsigned m_number8BitStrings;
-    unsigned m_number16BitStrings;
-    unsigned long long m_total8BitData;
-    unsigned long long m_total16BitData;
+  unsigned m_totalNumberStrings;
+  unsigned m_number8BitStrings;
+  unsigned m_number16BitStrings;
+  unsigned long long m_total8BitData;
+  unsigned long long m_total16BitData;
 };
 
 void addStringForStats(StringImpl*);
 void removeStringForStats(StringImpl*);
 
-#define STRING_STATS_ADD_8BIT_STRING(length) StringImpl::stringStats().add8BitString(length); addStringForStats(this)
-#define STRING_STATS_ADD_16BIT_STRING(length) StringImpl::stringStats().add16BitString(length); addStringForStats(this)
-#define STRING_STATS_REMOVE_STRING(string) StringImpl::stringStats().removeString(string); removeStringForStats(this)
+#define STRING_STATS_ADD_8BIT_STRING(length)       \
+  StringImpl::stringStats().add8BitString(length); \
+  addStringForStats(this)
+#define STRING_STATS_ADD_16BIT_STRING(length)       \
+  StringImpl::stringStats().add16BitString(length); \
+  addStringForStats(this)
+#define STRING_STATS_REMOVE_STRING(string)        \
+  StringImpl::stringStats().removeString(string); \
+  removeStringForStats(this)
 #else
 #define STRING_STATS_ADD_8BIT_STRING(length) ((void)0)
 #define STRING_STATS_ADD_16BIT_STRING(length) ((void)0)
 #define STRING_STATS_REMOVE_STRING(string) ((void)0)
 #endif
 
 // You can find documentation about this class in this doc:
 // https://docs.google.com/document/d/1kOCUlJdh2WJMJGDf-WoEQhmnjKLaOYRbiHz5TiGJl14/edit?usp=sharing
 class WTF_EXPORT StringImpl {
-    WTF_MAKE_NONCOPYABLE(StringImpl);
-    friend struct WTF::CStringTranslator;
-    template<typename CharacterType> friend struct WTF::HashAndCharactersTranslator;
-    friend struct WTF::HashAndUTF8CharactersTranslator;
-    friend struct WTF::CharBufferFromLiteralDataTranslator;
-    friend struct WTF::LCharBufferTranslator;
-    friend struct WTF::SubstringTranslator;
-    friend struct WTF::UCharBufferTranslator;
-
-private:
-    // StringImpls are allocated out of the WTF buffer partition.
-    void* operator new(size_t);
-    void* operator new(size_t, void* ptr) { return ptr; }
-    void operator delete(void*);
-
-    // Used to construct static strings, which have an special refCount that can
-    // never hit zero.  This means that the static string will never be
-    // destroyed, which is important because static strings will be shared
-    // across threads & ref-counted in a non-threadsafe manner.
-    enum ConstructEmptyStringTag { ConstructEmptyString };
-    explicit StringImpl(ConstructEmptyStringTag)
-        : m_refCount(1)
-        , m_length(0)
-        , m_hash(0)
-        , m_isAtomic(false)
-        , m_is8Bit(true)
-        , m_isStatic(true)
-    {
-        // Ensure that the hash is computed so that AtomicStringHash can call
-        // existingHash() with impunity. The empty string is special because it
-        // is never entered into AtomicString's HashKey, but still needs to
-        // compare correctly.
-        STRING_STATS_ADD_8BIT_STRING(m_length);
-        hash();
+  WTF_MAKE_NONCOPYABLE(StringImpl);
+  friend struct WTF::CStringTranslator;
+  template <typename CharacterType>
+  friend struct WTF::HashAndCharactersTranslator;
+  friend struct WTF::HashAndUTF8CharactersTranslator;
+  friend struct WTF::CharBufferFromLiteralDataTranslator;
+  friend struct WTF::LCharBufferTranslator;
+  friend struct WTF::SubstringTranslator;
+  friend struct WTF::UCharBufferTranslator;
+
+ private:
+  // StringImpls are allocated out of the WTF buffer partition.
+  void* operator new(size_t);
+  void* operator new(size_t, void* ptr) { return ptr; }
+  void operator delete(void*);
+
+  // Used to construct static strings, which have an special refCount that can
+  // never hit zero.  This means that the static string will never be
+  // destroyed, which is important because static strings will be shared
+  // across threads & ref-counted in a non-threadsafe manner.
+  enum ConstructEmptyStringTag { ConstructEmptyString };
+  explicit StringImpl(ConstructEmptyStringTag)
+      : m_refCount(1), m_length(0), m_hash(0), m_isAtomic(false), m_is8Bit(true), m_isStatic(true) {
+    // Ensure that the hash is computed so that AtomicStringHash can call
+    // existingHash() with impunity. The empty string is special because it
+    // is never entered into AtomicString's HashKey, but still needs to
+    // compare correctly.
+    STRING_STATS_ADD_8BIT_STRING(m_length);
+    hash();
+  }
+
+  enum ConstructEmptyString16BitTag { ConstructEmptyString16Bit };
+  explicit StringImpl(ConstructEmptyString16BitTag)
+      : m_refCount(1), m_length(0), m_hash(0), m_isAtomic(false), m_is8Bit(false), m_isStatic(true) {
+    STRING_STATS_ADD_16BIT_STRING(m_length);
+    hash();
+  }
+
+  // FIXME: there has to be a less hacky way to do this.
+  enum Force8Bit { Force8BitConstructor };
+  StringImpl(unsigned length, Force8Bit)
+      : m_refCount(1), m_length(length), m_hash(0), m_isAtomic(false), m_is8Bit(true), m_isStatic(false) {
+    ASSERT(m_length);
+    STRING_STATS_ADD_8BIT_STRING(m_length);
+  }
+
+  StringImpl(unsigned length)
+      : m_refCount(1), m_length(length), m_hash(0), m_isAtomic(false), m_is8Bit(false), m_isStatic(false) {
+    ASSERT(m_length);
+    STRING_STATS_ADD_16BIT_STRING(m_length);
+  }
+
+  enum StaticStringTag { StaticString };
+  StringImpl(unsigned length, unsigned hash, StaticStringTag)
+      : m_refCount(1), m_length(length), m_hash(hash), m_isAtomic(false), m_is8Bit(true), m_isStatic(true) {
+  }
+
+ public:
+  ~StringImpl();
+
+  static StringImpl* createStatic(const char* string, unsigned length, unsigned hash);
+  static void reserveStaticStringsCapacityForSize(unsigned size);
+  static void freezeStaticStrings();
+  static const StaticStringsTable& allStaticStrings();
+  static unsigned highestStaticStringLength() { return m_highestStaticStringLength; }
+
+  static PassRefPtr<StringImpl> create(const UChar*, unsigned length);
+  static PassRefPtr<StringImpl> create(const LChar*, unsigned length);
+  static PassRefPtr<StringImpl> create8BitIfPossible(const UChar*, unsigned length);
+  template <size_t inlineCapacity>
+  static PassRefPtr<StringImpl> create8BitIfPossible(const Vector<UChar, inlineCapacity>& vector) {
+    return create8BitIfPossible(vector.data(), vector.size());
+  }
+
+  ALWAYS_INLINE static PassRefPtr<StringImpl> create(const char* s, unsigned length) { return create(reinterpret_cast<const LChar*>(s), length); }
+  static PassRefPtr<StringImpl> create(const LChar*);
+  ALWAYS_INLINE static PassRefPtr<StringImpl> create(const char* s) { return create(reinterpret_cast<const LChar*>(s)); }
+
+  static PassRefPtr<StringImpl> createUninitialized(unsigned length, LChar*& data);
+  static PassRefPtr<StringImpl> createUninitialized(unsigned length, UChar*& data);
+
+  unsigned length() const { return m_length; }
+  bool is8Bit() const { return m_is8Bit; }
+
+  ALWAYS_INLINE const LChar* characters8() const {
+    ASSERT(is8Bit());
+    return reinterpret_cast<const LChar*>(this + 1);
+  }
+  ALWAYS_INLINE const UChar* characters16() const {
+    ASSERT(!is8Bit());
+    return reinterpret_cast<const UChar*>(this + 1);
+  }
+
+  template <typename CharType>
+  ALWAYS_INLINE const CharType* getCharacters() const;
+
+  size_t sizeInBytes() const;
+
+  bool isAtomic() const { return m_isAtomic; }
+  void setIsAtomic(bool isAtomic) { m_isAtomic = isAtomic; }
+
+  bool isStatic() const { return m_isStatic; }
+
+ private:
+  // The high bits of 'hash' are always empty, but we prefer to store our
+  // flags in the low bits because it makes them slightly more efficient to
+  // access.  So, we shift left and right when setting and getting our hash
+  // code.
+  void setHash(unsigned hash) const {
+    ASSERT(!hasHash());
+    // Multiple clients assume that StringHasher is the canonical string
+    // hash function.
+    ASSERT(hash == (is8Bit() ? StringHasher::computeHashAndMaskTop8Bits(characters8(), m_length) : StringHasher::computeHashAndMaskTop8Bits(characters16(), m_length)));
+    m_hash = hash;
+    ASSERT(hash);  // Verify that 0 is a valid sentinel hash value.
+  }
+
+  unsigned rawHash() const {
+    return m_hash;
+  }
+
+  void destroyIfNotStatic();
+
+ public:
+  bool hasHash() const {
+    return rawHash() != 0;
+  }
+
+  unsigned existingHash() const {
+    ASSERT(hasHash());
+    return rawHash();
+  }
+
+  unsigned hash() const {
+    if (hasHash())
+      return existingHash();
+    return hashSlowCase();
+  }
+
+  ALWAYS_INLINE bool hasOneRef() const {
+    return m_refCount == 1;
+  }
+
+  ALWAYS_INLINE void ref() {
+    ++m_refCount;
+  }
+
+  ALWAYS_INLINE void deref() {
+    if (hasOneRef()) {
+      destroyIfNotStatic();
+      return;
     }
 
-    enum ConstructEmptyString16BitTag { ConstructEmptyString16Bit };
-    explicit StringImpl(ConstructEmptyString16BitTag)
-        : m_refCount(1)
-        , m_length(0)
-        , m_hash(0)
-        , m_isAtomic(false)
-        , m_is8Bit(false)
-        , m_isStatic(true)
-    {
-        STRING_STATS_ADD_16BIT_STRING(m_length);
-        hash();
-    }
-
-    // FIXME: there has to be a less hacky way to do this.
-    enum Force8Bit { Force8BitConstructor };
-    StringImpl(unsigned length, Force8Bit)
-        : m_refCount(1)
-        , m_length(length)
-        , m_hash(0)
-        , m_isAtomic(false)
-        , m_is8Bit(true)
-        , m_isStatic(false)
-    {
-        ASSERT(m_length);
-        STRING_STATS_ADD_8BIT_STRING(m_length);
-    }
-
-    StringImpl(unsigned length)
-        : m_refCount(1)
-        , m_length(length)
-        , m_hash(0)
-        , m_isAtomic(false)
-        , m_is8Bit(false)
-        , m_isStatic(false)
-    {
-        ASSERT(m_length);
-        STRING_STATS_ADD_16BIT_STRING(m_length);
-    }
-
-    enum StaticStringTag { StaticString };
-    StringImpl(unsigned length, unsigned hash, StaticStringTag)
-        : m_refCount(1)
-        , m_length(length)
-        , m_hash(hash)
-        , m_isAtomic(false)
-        , m_is8Bit(true)
-        , m_isStatic(true)
-    {
-    }
-
-public:
-    ~StringImpl();
-
-    static StringImpl* createStatic(const char* string, unsigned length, unsigned hash);
-    static void reserveStaticStringsCapacityForSize(unsigned size);
-    static void freezeStaticStrings();
-    static const StaticStringsTable& allStaticStrings();
-    static unsigned highestStaticStringLength() { return m_highestStaticStringLength; }
-
-    static PassRefPtr<StringImpl> create(const UChar*, unsigned length);
-    static PassRefPtr<StringImpl> create(const LChar*, unsigned length);
-    static PassRefPtr<StringImpl> create8BitIfPossible(const UChar*, unsigned length);
-    template<size_t inlineCapacity>
-    static PassRefPtr<StringImpl> create8BitIfPossible(const Vector<UChar, inlineCapacity>& vector)
-    {
-        return create8BitIfPossible(vector.data(), vector.size());
-    }
-
-    ALWAYS_INLINE static PassRefPtr<StringImpl> create(const char* s, unsigned length) { return create(reinterpret_cast<const LChar*>(s), length); }
-    static PassRefPtr<StringImpl> create(const LChar*);
-    ALWAYS_INLINE static PassRefPtr<StringImpl> create(const char* s) { return create(reinterpret_cast<const LChar*>(s)); }
-
-    static PassRefPtr<StringImpl> createUninitialized(unsigned length, LChar*& data);
-    static PassRefPtr<StringImpl> createUninitialized(unsigned length, UChar*& data);
-
-    unsigned length() const { return m_length; }
-    bool is8Bit() const { return m_is8Bit; }
-
-    ALWAYS_INLINE const LChar* characters8() const { ASSERT(is8Bit()); return reinterpret_cast<const LChar*>(this + 1); }
-    ALWAYS_INLINE const UChar* characters16() const { ASSERT(!is8Bit()); return reinterpret_cast<const UChar*>(this + 1); }
-
-    template <typename CharType>
-    ALWAYS_INLINE const CharType * getCharacters() const;
-
-    size_t sizeInBytes() const;
-
-    bool isAtomic() const { return m_isAtomic; }
-    void setIsAtomic(bool isAtomic) { m_isAtomic = isAtomic; }
-
-    bool isStatic() const { return m_isStatic; }
-
-private:
-    // The high bits of 'hash' are always empty, but we prefer to store our
-    // flags in the low bits because it makes them slightly more efficient to
-    // access.  So, we shift left and right when setting and getting our hash
-    // code.
-    void setHash(unsigned hash) const
-    {
-        ASSERT(!hasHash());
-        // Multiple clients assume that StringHasher is the canonical string
-        // hash function.
-        ASSERT(hash == (is8Bit() ? StringHasher::computeHashAndMaskTop8Bits(characters8(), m_length) : StringHasher::computeHashAndMaskTop8Bits(characters16(), m_length)));
-        m_hash = hash;
-        ASSERT(hash); // Verify that 0 is a valid sentinel hash value.
-    }
-
-    unsigned rawHash() const
-    {
-        return m_hash;
-    }
-
-    void destroyIfNotStatic();
-
-public:
-    bool hasHash() const
-    {
-        return rawHash() != 0;
-    }
-
-    unsigned existingHash() const
-    {
-        ASSERT(hasHash());
-        return rawHash();
-    }
-
-    unsigned hash() const
-    {
-        if (hasHash())
-            return existingHash();
-        return hashSlowCase();
-    }
-
-    ALWAYS_INLINE bool hasOneRef() const
-    {
-        return m_refCount == 1;
-    }
-
-    ALWAYS_INLINE void ref()
-    {
-        ++m_refCount;
-    }
-
-    ALWAYS_INLINE void deref()
-    {
-        if (hasOneRef()) {
-            destroyIfNotStatic();
-            return;
-        }
-
-        --m_refCount;
-    }
-
-    static StringImpl* empty();
-    static StringImpl* empty16Bit();
-
-    // FIXME: Does this really belong in StringImpl?
-    template <typename T> static void copyChars(T* destination, const T* source, unsigned numCharacters)
-    {
-        memcpy(destination, source, numCharacters * sizeof(T));
-    }
-
-    ALWAYS_INLINE static void copyChars(UChar* destination, const LChar* source, unsigned numCharacters)
-    {
-        for (unsigned i = 0; i < numCharacters; ++i)
-            destination[i] = source[i];
-    }
-
-    // Some string features, like refcounting and the atomicity flag, are not
-    // thread-safe. We achieve thread safety by isolation, giving each thread
-    // its own copy of the string.
-    PassRefPtr<StringImpl> isolatedCopy() const;
-
-    PassRefPtr<StringImpl> substring(unsigned pos, unsigned len = UINT_MAX);
-
-    UChar operator[](unsigned i) const
-    {
-        ASSERT_WITH_SECURITY_IMPLICATION(i < m_length);
-        if (is8Bit())
-            return characters8()[i];
-        return characters16()[i];
-    }
-    UChar32 characterStartingAt(unsigned);
-
-    bool containsOnlyWhitespace();
-
-    int toIntStrict(bool* ok = 0, int base = 10);
-    unsigned toUIntStrict(bool* ok = 0, int base = 10);
-    int64_t toInt64Strict(bool* ok = 0, int base = 10);
-    uint64_t toUInt64Strict(bool* ok = 0, int base = 10);
-
-    int toInt(bool* ok = 0); // ignores trailing garbage
-    unsigned toUInt(bool* ok = 0); // ignores trailing garbage
-    int64_t toInt64(bool* ok = 0); // ignores trailing garbage
-    uint64_t toUInt64(bool* ok = 0); // ignores trailing garbage
-
-    // FIXME: Like the strict functions above, these give false for "ok" when
-    // there is trailing garbage.  Like the non-strict functions above, these
-    // return the value when there is trailing garbage.  It would be better if
-    // these were more consistent with the above functions instead.
-    double toDouble(bool* ok = 0);
-    float toFloat(bool* ok = 0);
-
-    PassRefPtr<StringImpl> lower();
-    PassRefPtr<StringImpl> upper();
-    PassRefPtr<StringImpl> lower(const AtomicString& localeIdentifier);
-    PassRefPtr<StringImpl> upper(const AtomicString& localeIdentifier);
-
-    PassRefPtr<StringImpl> fill(UChar);
-    // FIXME: Do we need fill(char) or can we just do the right thing if UChar is ASCII?
-    PassRefPtr<StringImpl> foldCase();
-
-    PassRefPtr<StringImpl> stripWhiteSpace();
-    PassRefPtr<StringImpl> stripWhiteSpace(IsWhiteSpaceFunctionPtr);
-    PassRefPtr<StringImpl> simplifyWhiteSpace(StripBehavior = StripExtraWhiteSpace);
-    PassRefPtr<StringImpl> simplifyWhiteSpace(IsWhiteSpaceFunctionPtr, StripBehavior = StripExtraWhiteSpace);
-
-    PassRefPtr<StringImpl> removeCharacters(CharacterMatchFunctionPtr);
-    template <typename CharType>
-    ALWAYS_INLINE PassRefPtr<StringImpl> removeCharacters(const CharType* characters, CharacterMatchFunctionPtr);
-
-    size_t find(LChar character, unsigned start = 0);
-    size_t find(char character, unsigned start = 0);
-    size_t find(UChar character, unsigned start = 0);
-    size_t find(CharacterMatchFunctionPtr, unsigned index = 0);
-    size_t find(const LChar*, unsigned index = 0);
-    ALWAYS_INLINE size_t find(const char* s, unsigned index = 0) { return find(reinterpret_cast<const LChar*>(s), index); }
-    size_t find(StringImpl*);
-    size_t find(StringImpl*, unsigned index);
-    size_t findIgnoringCase(const LChar*, unsigned index = 0);
-    ALWAYS_INLINE size_t findIgnoringCase(const char* s, unsigned index = 0) { return findIgnoringCase(reinterpret_cast<const LChar*>(s), index); }
-    size_t findIgnoringCase(StringImpl*, unsigned index = 0);
-
-    size_t findNextLineStart(unsigned index = UINT_MAX);
-
-    size_t reverseFind(UChar, unsigned index = UINT_MAX);
-    size_t reverseFind(StringImpl*, unsigned index = UINT_MAX);
-    size_t reverseFindIgnoringCase(StringImpl*, unsigned index = UINT_MAX);
-
-    size_t count(LChar) const;
-
-    bool startsWith(StringImpl* str, TextCaseSensitivity caseSensitivity = TextCaseSensitive) { return ((caseSensitivity == TextCaseSensitive) ? reverseFind(str, 0) : reverseFindIgnoringCase(str, 0)) == 0; }
-    bool startsWith(UChar) const;
-    bool startsWith(const char*, unsigned matchLength, TextCaseSensitivity) const;
-    template<unsigned matchLength>
-    bool startsWith(const char (&prefix)[matchLength], TextCaseSensitivity caseSensitivity = TextCaseSensitive) const { return startsWith(prefix, matchLength - 1, caseSensitivity); }
-
-    bool endsWith(StringImpl*, TextCaseSensitivity = TextCaseSensitive);
-    bool endsWith(UChar) const;
-    bool endsWith(const char*, unsigned matchLength, TextCaseSensitivity) const;
-    template<unsigned matchLength>
-    bool endsWith(const char (&prefix)[matchLength], TextCaseSensitivity caseSensitivity = TextCaseSensitive) const { return endsWith(prefix, matchLength - 1, caseSensitivity); }
-
-    PassRefPtr<StringImpl> replace(UChar, UChar);
-    PassRefPtr<StringImpl> replace(UChar, StringImpl*);
-    ALWAYS_INLINE PassRefPtr<StringImpl> replace(UChar pattern, const char* replacement, unsigned replacementLength) { return replace(pattern, reinterpret_cast<const LChar*>(replacement), replacementLength); }
-    PassRefPtr<StringImpl> replace(UChar, const LChar*, unsigned replacementLength);
-    PassRefPtr<StringImpl> replace(UChar, const UChar*, unsigned replacementLength);
-    PassRefPtr<StringImpl> replace(StringImpl*, StringImpl*);
-    PassRefPtr<StringImpl> replace(unsigned index, unsigned len, StringImpl*);
-    PassRefPtr<StringImpl> upconvertedString();
+    --m_refCount;
+  }
+
+  static StringImpl* empty();
+  static StringImpl* empty16Bit();
+
+  // FIXME: Does this really belong in StringImpl?
+  template <typename T>
+  static void copyChars(T* destination, const T* source, unsigned numCharacters) {
+    memcpy(destination, source, numCharacters * sizeof(T));
+  }
+
+  ALWAYS_INLINE static void copyChars(UChar* destination, const LChar* source, unsigned numCharacters) {
+    for (unsigned i = 0; i < numCharacters; ++i)
+      destination[i] = source[i];
+  }
+
+  // Some string features, like refcounting and the atomicity flag, are not
+  // thread-safe. We achieve thread safety by isolation, giving each thread
+  // its own copy of the string.
+  PassRefPtr<StringImpl> isolatedCopy() const;
+
+  PassRefPtr<StringImpl> substring(unsigned pos, unsigned len = UINT_MAX);
+
+  UChar operator[](unsigned i) const {
+    ASSERT_WITH_SECURITY_IMPLICATION(i < m_length);
+    if (is8Bit())
+      return characters8()[i];
+    return characters16()[i];
+  }
+  UChar32 characterStartingAt(unsigned);
+
+  bool containsOnlyWhitespace();
+
+  int toIntStrict(bool* ok = 0, int base = 10);
+  unsigned toUIntStrict(bool* ok = 0, int base = 10);
+  int64_t toInt64Strict(bool* ok = 0, int base = 10);
+  uint64_t toUInt64Strict(bool* ok = 0, int base = 10);
+
+  int toInt(bool* ok = 0);          // ignores trailing garbage
+  unsigned toUInt(bool* ok = 0);    // ignores trailing garbage
+  int64_t toInt64(bool* ok = 0);    // ignores trailing garbage
+  uint64_t toUInt64(bool* ok = 0);  // ignores trailing garbage
+
+  // FIXME: Like the strict functions above, these give false for "ok" when
+  // there is trailing garbage.  Like the non-strict functions above, these
+  // return the value when there is trailing garbage.  It would be better if
+  // these were more consistent with the above functions instead.
+  double toDouble(bool* ok = 0);
+  float toFloat(bool* ok = 0);
+
+  PassRefPtr<StringImpl> lower();
+  PassRefPtr<StringImpl> upper();
+  PassRefPtr<StringImpl> lower(const AtomicString& localeIdentifier);
+  PassRefPtr<StringImpl> upper(const AtomicString& localeIdentifier);
+
+  PassRefPtr<StringImpl> fill(UChar);
+  // FIXME: Do we need fill(char) or can we just do the right thing if UChar is ASCII?
+  PassRefPtr<StringImpl> foldCase();
+
+  PassRefPtr<StringImpl> stripWhiteSpace();
+  PassRefPtr<StringImpl> stripWhiteSpace(IsWhiteSpaceFunctionPtr);
+  PassRefPtr<StringImpl> simplifyWhiteSpace(StripBehavior = StripExtraWhiteSpace);
+  PassRefPtr<StringImpl> simplifyWhiteSpace(IsWhiteSpaceFunctionPtr, StripBehavior = StripExtraWhiteSpace);
+
+  PassRefPtr<StringImpl> removeCharacters(CharacterMatchFunctionPtr);
+  template <typename CharType>
+  ALWAYS_INLINE PassRefPtr<StringImpl> removeCharacters(const CharType* characters, CharacterMatchFunctionPtr);
+
+  size_t find(LChar character, unsigned start = 0);
+  size_t find(char character, unsigned start = 0);
+  size_t find(UChar character, unsigned start = 0);
+  size_t find(CharacterMatchFunctionPtr, unsigned index = 0);
+  size_t find(const LChar*, unsigned index = 0);
+  ALWAYS_INLINE size_t find(const char* s, unsigned index = 0) { return find(reinterpret_cast<const LChar*>(s), index); }
+  size_t find(StringImpl*);
+  size_t find(StringImpl*, unsigned index);
+  size_t findIgnoringCase(const LChar*, unsigned index = 0);
+  ALWAYS_INLINE size_t findIgnoringCase(const char* s, unsigned index = 0) { return findIgnoringCase(reinterpret_cast<const LChar*>(s), index); }
+  size_t findIgnoringCase(StringImpl*, unsigned index = 0);
+
+  size_t findNextLineStart(unsigned index = UINT_MAX);
+
+  size_t reverseFind(UChar, unsigned index = UINT_MAX);
+  size_t reverseFind(StringImpl*, unsigned index = UINT_MAX);
+  size_t reverseFindIgnoringCase(StringImpl*, unsigned index = UINT_MAX);
+
+  size_t count(LChar) const;
+
+  bool startsWith(StringImpl* str, TextCaseSensitivity caseSensitivity = TextCaseSensitive) { return ((caseSensitivity == TextCaseSensitive) ? reverseFind(str, 0) : reverseFindIgnoringCase(str, 0)) == 0; }
+  bool startsWith(UChar) const;
+  bool startsWith(const char*, unsigned matchLength, TextCaseSensitivity) const;
+  template <unsigned matchLength>
+  bool startsWith(const char(&prefix)[matchLength], TextCaseSensitivity caseSensitivity = TextCaseSensitive) const { return startsWith(prefix, matchLength - 1, caseSensitivity); }
+
+  bool endsWith(StringImpl*, TextCaseSensitivity = TextCaseSensitive);
+  bool endsWith(UChar) const;
+  bool endsWith(const char*, unsigned matchLength, TextCaseSensitivity) const;
+  template <unsigned matchLength>
+  bool endsWith(const char(&prefix)[matchLength], TextCaseSensitivity caseSensitivity = TextCaseSensitive) const { return endsWith(prefix, matchLength - 1, caseSensitivity); }
+
+  PassRefPtr<StringImpl> replace(UChar, UChar);
+  PassRefPtr<StringImpl> replace(UChar, StringImpl*);
+  ALWAYS_INLINE PassRefPtr<StringImpl> replace(UChar pattern, const char* replacement, unsigned replacementLength) { return replace(pattern, reinterpret_cast<const LChar*>(replacement), replacementLength); }
+  PassRefPtr<StringImpl> replace(UChar, const LChar*, unsigned replacementLength);
+  PassRefPtr<StringImpl> replace(UChar, const UChar*, unsigned replacementLength);
+  PassRefPtr<StringImpl> replace(StringImpl*, StringImpl*);
+  PassRefPtr<StringImpl> replace(unsigned index, unsigned len, StringImpl*);
+  PassRefPtr<StringImpl> upconvertedString();
 
 #if OS(MACOSX)
-    RetainPtr<CFStringRef> createCFString();
+  RetainPtr<CFStringRef> createCFString();
 #endif
 #ifdef __OBJC__
-    operator NSString*();
+  operator NSString*();
 #endif
 
 #ifdef STRING_STATS
-    ALWAYS_INLINE static StringStats& stringStats() { return m_stringStats; }
+  ALWAYS_INLINE static StringStats& stringStats() { return m_stringStats; }
 #endif
-    static const UChar latin1CaseFoldTable[256];
-
-private:
-    template<typename CharType> static size_t allocationSize(unsigned length)
-    {
-        RELEASE_ASSERT(length <= ((std::numeric_limits<unsigned>::max() - sizeof(StringImpl)) / sizeof(CharType)));
-        return sizeof(StringImpl) + length * sizeof(CharType);
-    }
-
-    template <class UCharPredicate> PassRefPtr<StringImpl> stripMatchedCharacters(UCharPredicate);
-    template <typename CharType, class UCharPredicate> PassRefPtr<StringImpl> simplifyMatchedCharactersToSpace(UCharPredicate, StripBehavior);
-    NEVER_INLINE unsigned hashSlowCase() const;
+  static const UChar latin1CaseFoldTable[256];
+
+ private:
+  template <typename CharType>
+  static size_t allocationSize(unsigned length) {
+    RELEASE_ASSERT(length <= ((std::numeric_limits<unsigned>::max() - sizeof(StringImpl)) / sizeof(CharType)));
+    return sizeof(StringImpl) + length * sizeof(CharType);
+  }
+
+  template <class UCharPredicate>
+  PassRefPtr<StringImpl> stripMatchedCharacters(UCharPredicate);
+  template <typename CharType, class UCharPredicate>
+  PassRefPtr<StringImpl> simplifyMatchedCharactersToSpace(UCharPredicate, StripBehavior);
+  NEVER_INLINE unsigned hashSlowCase() const;
 
 #ifdef STRING_STATS
-    static StringStats m_stringStats;
+  static StringStats m_stringStats;
 #endif
 
-    static unsigned m_highestStaticStringLength;
+  static unsigned m_highestStaticStringLength;
 
 #if ENABLE(ASSERT)
-    void assertHashIsCorrect()
-    {
-        ASSERT(hasHash());
-        ASSERT(existingHash() == StringHasher::computeHashAndMaskTop8Bits(characters8(), length()));
-    }
+  void assertHashIsCorrect() {
+    ASSERT(hasHash());
+    ASSERT(existingHash() == StringHasher::computeHashAndMaskTop8Bits(characters8(), length()));
+  }
 #endif
 
-private:
-    unsigned m_refCount;
-    const unsigned m_length;
-    mutable unsigned m_hash : 24;
-    unsigned m_isAtomic : 1;
-    const unsigned m_is8Bit : 1;
-    const unsigned m_isStatic : 1;
+ private:
+  unsigned m_refCount;
+  const unsigned m_length;
+  mutable unsigned m_hash : 24;
+  unsigned m_isAtomic : 1;
+  const unsigned m_is8Bit : 1;
+  const unsigned m_isStatic : 1;
 };
 
 template <>
-ALWAYS_INLINE const LChar* StringImpl::getCharacters<LChar>() const { return characters8(); }
+ALWAYS_INLINE const LChar* StringImpl::getCharacters<LChar>() const {
+  return characters8();
+}
 
 template <>
-ALWAYS_INLINE const UChar* StringImpl::getCharacters<UChar>() const { return characters16(); }
+ALWAYS_INLINE const UChar* StringImpl::getCharacters<UChar>() const {
+  return characters16();
+}
 
 WTF_EXPORT bool equal(const StringImpl*, const StringImpl*);
 WTF_EXPORT bool equal(const StringImpl*, const LChar*);
-inline bool equal(const StringImpl* a, const char* b) { return equal(a, reinterpret_cast<const LChar*>(b)); }
+inline bool equal(const StringImpl* a, const char* b) {
+  return equal(a, reinterpret_cast<const LChar*>(b));
+}
 WTF_EXPORT bool equal(const StringImpl*, const LChar*, unsigned);
 WTF_EXPORT bool equal(const StringImpl*, const UChar*, unsigned);
-inline bool equal(const StringImpl* a, const char* b, unsigned length) { return equal(a, reinterpret_cast<const LChar*>(b), length); }
-inline bool equal(const LChar* a, StringImpl* b) { return equal(b, a); }
-inline bool equal(const char* a, StringImpl* b) { return equal(b, reinterpret_cast<const LChar*>(a)); }
+inline bool equal(const StringImpl* a, const char* b, unsigned length) {
+  return equal(a, reinterpret_cast<const LChar*>(b), length);
+}
+inline bool equal(const LChar* a, StringImpl* b) {
+  return equal(b, a);
+}
+inline bool equal(const char* a, StringImpl* b) {
+  return equal(b, reinterpret_cast<const LChar*>(a));
+}
 WTF_EXPORT bool equalNonNull(const StringImpl* a, const StringImpl* b);
 
-template<typename CharType>
-ALWAYS_INLINE bool equal(const CharType* a, const CharType* b, unsigned length) { return !memcmp(a, b, length * sizeof(CharType)); }
-
-ALWAYS_INLINE bool equal(const LChar* a, const UChar* b, unsigned length)
-{
-    for (unsigned i = 0; i < length; ++i) {
-        if (a[i] != b[i])
-            return false;
-    }
-    return true;
-}
-
-ALWAYS_INLINE bool equal(const UChar* a, const LChar* b, unsigned length) { return equal(b, a, length); }
+template <typename CharType>
+ALWAYS_INLINE bool equal(const CharType* a, const CharType* b, unsigned length) {
+  return !memcmp(a, b, length * sizeof(CharType));
+}
+
+ALWAYS_INLINE bool equal(const LChar* a, const UChar* b, unsigned length) {
+  for (unsigned i = 0; i < length; ++i) {
+    if (a[i] != b[i])
+      return false;
+  }
+  return true;
+}
+
+ALWAYS_INLINE bool equal(const UChar* a, const LChar* b, unsigned length) {
+  return equal(b, a, length);
+}
 
 WTF_EXPORT bool equalIgnoringCase(const StringImpl*, const StringImpl*);
 WTF_EXPORT bool equalIgnoringCase(const StringImpl*, const LChar*);
-inline bool equalIgnoringCase(const LChar* a, const StringImpl* b) { return equalIgnoringCase(b, a); }
+inline bool equalIgnoringCase(const LChar* a, const StringImpl* b) {
+  return equalIgnoringCase(b, a);
+}
 WTF_EXPORT bool equalIgnoringCase(const LChar*, const LChar*, unsigned);
 WTF_EXPORT bool equalIgnoringCase(const UChar*, const LChar*, unsigned);
-inline bool equalIgnoringCase(const UChar* a, const char* b, unsigned length) { return equalIgnoringCase(a, reinterpret_cast<const LChar*>(b), length); }
-inline bool equalIgnoringCase(const LChar* a, const UChar* b, unsigned length) { return equalIgnoringCase(b, a, length); }
-inline bool equalIgnoringCase(const char* a, const UChar* b, unsigned length) { return equalIgnoringCase(b, reinterpret_cast<const LChar*>(a), length); }
-inline bool equalIgnoringCase(const char* a, const LChar* b, unsigned length) { return equalIgnoringCase(b, reinterpret_cast<const LChar*>(a), length); }
-inline bool equalIgnoringCase(const UChar* a, const UChar* b, int length)
-{
-    ASSERT(length >= 0);
-    return !Unicode::umemcasecmp(a, b, length);
+inline bool equalIgnoringCase(const UChar* a, const char* b, unsigned length) {
+  return equalIgnoringCase(a, reinterpret_cast<const LChar*>(b), length);
+}
+inline bool equalIgnoringCase(const LChar* a, const UChar* b, unsigned length) {
+  return equalIgnoringCase(b, a, length);
+}
+inline bool equalIgnoringCase(const char* a, const UChar* b, unsigned length) {
+  return equalIgnoringCase(b, reinterpret_cast<const LChar*>(a), length);
+}
+inline bool equalIgnoringCase(const char* a, const LChar* b, unsigned length) {
+  return equalIgnoringCase(b, reinterpret_cast<const LChar*>(a), length);
+}
+inline bool equalIgnoringCase(const UChar* a, const UChar* b, int length) {
+  ASSERT(length >= 0);
+  return !Unicode::umemcasecmp(a, b, length);
 }
 WTF_EXPORT bool equalIgnoringCaseNonNull(const StringImpl*, const StringImpl*);
 
 WTF_EXPORT bool equalIgnoringNullity(StringImpl*, StringImpl*);
 
-template<typename CharacterTypeA, typename CharacterTypeB>
-inline bool equalIgnoringASCIICase(const CharacterTypeA* a, const CharacterTypeB* b, unsigned length)
-{
-    for (unsigned i = 0; i < length; ++i) {
-        if (toASCIILower(a[i]) != toASCIILower(b[i]))
-            return false;
+template <typename CharacterTypeA, typename CharacterTypeB>
+inline bool equalIgnoringASCIICase(const CharacterTypeA* a, const CharacterTypeB* b, unsigned length) {
+  for (unsigned i = 0; i < length; ++i) {
+    if (toASCIILower(a[i]) != toASCIILower(b[i]))
+      return false;
+  }
+  return true;
+}
+
+template <typename CharacterTypeA, typename CharacterTypeB>
+bool startsWithIgnoringASCIICase(const CharacterTypeA& reference, const CharacterTypeB& prefix) {
+  unsigned prefixLength = prefix.length();
+  if (prefixLength > reference.length())
+    return false;
+
+  if (reference.is8Bit()) {
+    if (prefix.is8Bit())
+      return equalIgnoringASCIICase(reference.characters8(), prefix.characters8(), prefixLength);
+    return equalIgnoringASCIICase(reference.characters8(), prefix.characters16(), prefixLength);
+  }
+  if (prefix.is8Bit())
+    return equalIgnoringASCIICase(reference.characters16(), prefix.characters8(), prefixLength);
+  return equalIgnoringASCIICase(reference.characters16(), prefix.characters16(), prefixLength);
+}
+
+template <typename CharacterType>
+inline size_t find(const CharacterType* characters, unsigned length, CharacterType matchCharacter, unsigned index = 0) {
+  while (index < length) {
+    if (characters[index] == matchCharacter)
+      return index;
+    ++index;
+  }
+  return kNotFound;
+}
+
+ALWAYS_INLINE size_t find(const UChar* characters, unsigned length, LChar matchCharacter, unsigned index = 0) {
+  return find(characters, length, static_cast<UChar>(matchCharacter), index);
+}
+
+inline size_t find(const LChar* characters, unsigned length, UChar matchCharacter, unsigned index = 0) {
+  if (matchCharacter & ~0xFF)
+    return kNotFound;
+  return find(characters, length, static_cast<LChar>(matchCharacter), index);
+}
+
+inline size_t find(const LChar* characters, unsigned length, CharacterMatchFunctionPtr matchFunction, unsigned index = 0) {
+  while (index < length) {
+    if (matchFunction(characters[index]))
+      return index;
+    ++index;
+  }
+  return kNotFound;
+}
+
+inline size_t find(const UChar* characters, unsigned length, CharacterMatchFunctionPtr matchFunction, unsigned index = 0) {
+  while (index < length) {
+    if (matchFunction(characters[index]))
+      return index;
+    ++index;
+  }
+  return kNotFound;
+}
+
+template <typename CharacterType>
+inline size_t findNextLineStart(const CharacterType* characters, unsigned length, unsigned index = 0) {
+  while (index < length) {
+    CharacterType c = characters[index++];
+    if ((c != '\n') && (c != '\r'))
+      continue;
+
+    // There can only be a start of a new line if there are more characters
+    // beyond the current character.
+    if (index < length) {
+      // The 3 common types of line terminators are 1. \r\n (Windows),
+      // 2. \r (old MacOS) and 3. \n (Unix'es).
+
+      if (c == '\n')
+        return index;  // Case 3: just \n.
+
+      CharacterType c2 = characters[index];
+      if (c2 != '\n')
+        return index;  // Case 2: just \r.
+
+      // Case 1: \r\n.
+      // But, there's only a start of a new line if there are more
+      // characters beyond the \r\n.
+      if (++index < length)
+        return index;
     }
-    return true;
-}
-
-template<typename CharacterTypeA, typename CharacterTypeB>
-bool startsWithIgnoringASCIICase(const CharacterTypeA& reference, const CharacterTypeB& prefix)
-{
-    unsigned prefixLength = prefix.length();
-    if (prefixLength > reference.length())
-        return false;
-
-    if (reference.is8Bit()) {
-        if (prefix.is8Bit())
-            return equalIgnoringASCIICase(reference.characters8(), prefix.characters8(), prefixLength);
-        return equalIgnoringASCIICase(reference.characters8(), prefix.characters16(), prefixLength);
-    }
-    if (prefix.is8Bit())
-        return equalIgnoringASCIICase(reference.characters16(), prefix.characters8(), prefixLength);
-    return equalIgnoringASCIICase(reference.characters16(), prefix.characters16(), prefixLength);
-}
-
-template<typename CharacterType>
-inline size_t find(const CharacterType* characters, unsigned length, CharacterType matchCharacter, unsigned index = 0)
-{
-    while (index < length) {
-        if (characters[index] == matchCharacter)
-            return index;
-        ++index;
-    }
+  }
+  return kNotFound;
+}
+
+template <typename CharacterType>
+inline size_t reverseFindLineTerminator(const CharacterType* characters, unsigned length, unsigned index = UINT_MAX) {
+  if (!length)
     return kNotFound;
-}
-
-ALWAYS_INLINE size_t find(const UChar* characters, unsigned length, LChar matchCharacter, unsigned index = 0)
-{
-    return find(characters, length, static_cast<UChar>(matchCharacter), index);
-}
-
-inline size_t find(const LChar* characters, unsigned length, UChar matchCharacter, unsigned index = 0)
-{
-    if (matchCharacter & ~0xFF)
-        return kNotFound;
-    return find(characters, length, static_cast<LChar>(matchCharacter), index);
-}
-
-inline size_t find(const LChar* characters, unsigned length, CharacterMatchFunctionPtr matchFunction, unsigned index = 0)
-{
-    while (index < length) {
-        if (matchFunction(characters[index]))
-            return index;
-        ++index;
-    }
+  if (index >= length)
+    index = length - 1;
+  CharacterType c = characters[index];
+  while ((c != '\n') && (c != '\r')) {
+    if (!index--)
+      return kNotFound;
+    c = characters[index];
+  }
+  return index;
+}
+
+template <typename CharacterType>
+inline size_t reverseFind(const CharacterType* characters, unsigned length, CharacterType matchCharacter, unsigned index = UINT_MAX) {
+  if (!length)
     return kNotFound;
-}
-
-inline size_t find(const UChar* characters, unsigned length, CharacterMatchFunctionPtr matchFunction, unsigned index = 0)
-{
-    while (index < length) {
-        if (matchFunction(characters[index]))
-            return index;
-        ++index;
-    }
+  if (index >= length)
+    index = length - 1;
+  while (characters[index] != matchCharacter) {
+    if (!index--)
+      return kNotFound;
+  }
+  return index;
+}
+
+ALWAYS_INLINE size_t reverseFind(const UChar* characters, unsigned length, LChar matchCharacter, unsigned index = UINT_MAX) {
+  return reverseFind(characters, length, static_cast<UChar>(matchCharacter), index);
+}
+
+inline size_t reverseFind(const LChar* characters, unsigned length, UChar matchCharacter, unsigned index = UINT_MAX) {
+  if (matchCharacter & ~0xFF)
     return kNotFound;
-}
-
-template<typename CharacterType>
-inline size_t findNextLineStart(const CharacterType* characters, unsigned length, unsigned index = 0)
-{
-    while (index < length) {
-        CharacterType c = characters[index++];
-        if ((c != '\n') && (c != '\r'))
-            continue;
-
-        // There can only be a start of a new line if there are more characters
-        // beyond the current character.
-        if (index < length) {
-            // The 3 common types of line terminators are 1. \r\n (Windows),
-            // 2. \r (old MacOS) and 3. \n (Unix'es).
-
-            if (c == '\n')
-                return index; // Case 3: just \n.
-
-            CharacterType c2 = characters[index];
-            if (c2 != '\n')
-                return index; // Case 2: just \r.
-
-            // Case 1: \r\n.
-            // But, there's only a start of a new line if there are more
-            // characters beyond the \r\n.
-            if (++index < length)
-                return index;
-        }
-    }
-    return kNotFound;
-}
-
-template<typename CharacterType>
-inline size_t reverseFindLineTerminator(const CharacterType* characters, unsigned length, unsigned index = UINT_MAX)
-{
-    if (!length)
-        return kNotFound;
-    if (index >= length)
-        index = length - 1;
-    CharacterType c = characters[index];
-    while ((c != '\n') && (c != '\r')) {
-        if (!index--)
-            return kNotFound;
-        c = characters[index];
-    }
-    return index;
-}
-
-template<typename CharacterType>
-inline size_t reverseFind(const CharacterType* characters, unsigned length, CharacterType matchCharacter, unsigned index = UINT_MAX)
-{
-    if (!length)
-        return kNotFound;
-    if (index >= length)
-        index = length - 1;
-    while (characters[index] != matchCharacter) {
-        if (!index--)
-            return kNotFound;
-    }
-    return index;
-}
-
-ALWAYS_INLINE size_t reverseFind(const UChar* characters, unsigned length, LChar matchCharacter, unsigned index = UINT_MAX)
-{
-    return reverseFind(characters, length, static_cast<UChar>(matchCharacter), index);
-}
-
-inline size_t reverseFind(const LChar* characters, unsigned length, UChar matchCharacter, unsigned index = UINT_MAX)
-{
-    if (matchCharacter & ~0xFF)
-        return kNotFound;
-    return reverseFind(characters, length, static_cast<LChar>(matchCharacter), index);
-}
-
-inline size_t StringImpl::find(LChar character, unsigned start)
-{
-    if (is8Bit())
-        return WTF::find(characters8(), m_length, character, start);
-    return WTF::find(characters16(), m_length, character, start);
-}
-
-ALWAYS_INLINE size_t StringImpl::find(char character, unsigned start)
-{
-    return find(static_cast<LChar>(character), start);
-}
-
-inline size_t StringImpl::find(UChar character, unsigned start)
-{
-    if (is8Bit())
-        return WTF::find(characters8(), m_length, character, start);
-    return WTF::find(characters16(), m_length, character, start);
-}
-
-inline unsigned lengthOfNullTerminatedString(const UChar* string)
-{
-    size_t length = 0;
-    while (string[length] != UChar(0))
-        ++length;
-    RELEASE_ASSERT(length <= std::numeric_limits<unsigned>::max());
-    return static_cast<unsigned>(length);
-}
-
-template<size_t inlineCapacity>
-bool equalIgnoringNullity(const Vector<UChar, inlineCapacity>& a, StringImpl* b)
-{
-    if (!b)
-        return !a.size();
-    if (a.size() != b->length())
-        return false;
-    if (b->is8Bit())
-        return equal(a.data(), b->characters8(), b->length());
-    return equal(a.data(), b->characters16(), b->length());
-}
-
-template<typename CharacterType1, typename CharacterType2>
-static inline int codePointCompare(unsigned l1, unsigned l2, const CharacterType1* c1, const CharacterType2* c2)
-{
-    const unsigned lmin = l1 < l2 ? l1 : l2;
-    unsigned pos = 0;
-    while (pos < lmin && *c1 == *c2) {
-        ++c1;
-        ++c2;
-        ++pos;
-    }
-
-    if (pos < lmin)
-        return (c1[0] > c2[0]) ? 1 : -1;
-
-    if (l1 == l2)
-        return 0;
-
-    return (l1 > l2) ? 1 : -1;
-}
-
-static inline int codePointCompare8(const StringImpl* string1, const StringImpl* string2)
-{
-    return codePointCompare(string1->length(), string2->length(), string1->characters8(), string2->characters8());
-}
-
-static inline int codePointCompare16(const StringImpl* string1, const StringImpl* string2)
-{
-    return codePointCompare(string1->length(), string2->length(), string1->characters16(), string2->characters16());
-}
-
-static inline int codePointCompare8To16(const StringImpl* string1, const StringImpl* string2)
-{
-    return codePointCompare(string1->length(), string2->length(), string1->characters8(), string2->characters16());
-}
-
-static inline int codePointCompare(const StringImpl* string1, const StringImpl* string2)
-{
-    if (!string1)
-        return (string2 && string2->length()) ? -1 : 0;
-
-    if (!string2)
-        return string1->length() ? 1 : 0;
-
-    bool string1Is8Bit = string1->is8Bit();
-    bool string2Is8Bit = string2->is8Bit();
-    if (string1Is8Bit) {
-        if (string2Is8Bit)
-            return codePointCompare8(string1, string2);
-        return codePointCompare8To16(string1, string2);
-    }
+  return reverseFind(characters, length, static_cast<LChar>(matchCharacter), index);
+}
+
+inline size_t StringImpl::find(LChar character, unsigned start) {
+  if (is8Bit())
+    return WTF::find(characters8(), m_length, character, start);
+  return WTF::find(characters16(), m_length, character, start);
+}
+
+ALWAYS_INLINE size_t StringImpl::find(char character, unsigned start) {
+  return find(static_cast<LChar>(character), start);
+}
+
+inline size_t StringImpl::find(UChar character, unsigned start) {
+  if (is8Bit())
+    return WTF::find(characters8(), m_length, character, start);
+  return WTF::find(characters16(), m_length, character, start);
+}
+
+inline unsigned lengthOfNullTerminatedString(const UChar* string) {
+  size_t length = 0;
+  while (string[length] != UChar(0))
+    ++length;
+  RELEASE_ASSERT(length <= std::numeric_limits<unsigned>::max());
+  return static_cast<unsigned>(length);
+}
+
+template <size_t inlineCapacity>
+bool equalIgnoringNullity(const Vector<UChar, inlineCapacity>& a, StringImpl* b) {
+  if (!b)
+    return !a.size();
+  if (a.size() != b->length())
+    return false;
+  if (b->is8Bit())
+    return equal(a.data(), b->characters8(), b->length());
+  return equal(a.data(), b->characters16(), b->length());
+}
+
+template <typename CharacterType1, typename CharacterType2>
+static inline int codePointCompare(unsigned l1, unsigned l2, const CharacterType1* c1, const CharacterType2* c2) {
+  const unsigned lmin = l1 < l2 ? l1 : l2;
+  unsigned pos = 0;
+  while (pos < lmin && *c1 == *c2) {
+    ++c1;
+    ++c2;
+    ++pos;
+  }
+
+  if (pos < lmin)
+    return (c1[0] > c2[0]) ? 1 : -1;
+
+  if (l1 == l2)
+    return 0;
+
+  return (l1 > l2) ? 1 : -1;
+}
+
+static inline int codePointCompare8(const StringImpl* string1, const StringImpl* string2) {
+  return codePointCompare(string1->length(), string2->length(), string1->characters8(), string2->characters8());
+}
+
+static inline int codePointCompare16(const StringImpl* string1, const StringImpl* string2) {
+  return codePointCompare(string1->length(), string2->length(), string1->characters16(), string2->characters16());
+}
+
+static inline int codePointCompare8To16(const StringImpl* string1, const StringImpl* string2) {
+  return codePointCompare(string1->length(), string2->length(), string1->characters8(), string2->characters16());
+}
+
+static inline int codePointCompare(const StringImpl* string1, const StringImpl* string2) {
+  if (!string1)
+    return (string2 && string2->length()) ? -1 : 0;
+
+  if (!string2)
+    return string1->length() ? 1 : 0;
+
+  bool string1Is8Bit = string1->is8Bit();
+  bool string2Is8Bit = string2->is8Bit();
+  if (string1Is8Bit) {
     if (string2Is8Bit)
-        return -codePointCompare8To16(string2, string1);
-    return codePointCompare16(string1, string2);
-}
-
-static inline bool isSpaceOrNewline(UChar c)
-{
-    // Use isASCIISpace() for basic Latin-1.
-    // This will include newlines, which aren't included in Unicode DirWS.
-    return c <= 0x7F ? WTF::isASCIISpace(c) : WTF::Unicode::direction(c) == WTF::Unicode::WhiteSpaceNeutral;
-}
-
-inline PassRefPtr<StringImpl> StringImpl::isolatedCopy() const
-{
-    if (is8Bit())
-        return create(characters8(), m_length);
-    return create(characters16(), m_length);
+      return codePointCompare8(string1, string2);
+    return codePointCompare8To16(string1, string2);
+  }
+  if (string2Is8Bit)
+    return -codePointCompare8To16(string2, string1);
+  return codePointCompare16(string1, string2);
+}
+
+static inline bool isSpaceOrNewline(UChar c) {
+  // Use isASCIISpace() for basic Latin-1.
+  // This will include newlines, which aren't included in Unicode DirWS.
+  return c <= 0x7F ? WTF::isASCIISpace(c) : WTF::Unicode::direction(c) == WTF::Unicode::WhiteSpaceNeutral;
+}
+
+inline PassRefPtr<StringImpl> StringImpl::isolatedCopy() const {
+  if (is8Bit())
+    return create(characters8(), m_length);
+  return create(characters16(), m_length);
 }
 
 // TODO(rob.buis) possibly find a better place for this method.
 // Turns a UChar32 to uppercase based on localeIdentifier.
 WTF_EXPORT UChar32 toUpper(UChar32, const AtomicString& localeIdentifier);
 
 struct StringHash;
 
 // StringHash is the default hash for StringImpl* and RefPtr<StringImpl>
-template<typename T> struct DefaultHash;
-template<> struct DefaultHash<StringImpl*> {
-    typedef StringHash Hash;
+template <typename T>
+struct DefaultHash;
+template <>
+struct DefaultHash<StringImpl*> {
+  typedef StringHash Hash;
 };
-template<> struct DefaultHash<RefPtr<StringImpl>> {
-    typedef StringHash Hash;
+template <>
+struct DefaultHash<RefPtr<StringImpl>> {
+  typedef StringHash Hash;
 };
-
 }
 
 using WTF::StringImpl;
 using WTF::equal;
 using WTF::equalNonNull;
 using WTF::TextCaseSensitivity;
 using WTF::TextCaseSensitive;
 using WTF::TextCaseInsensitive;
 
 #endif