DevTools: always use 16bit strings for inspector protocol.

third_party/WebKit/Source/platform/inspector_protocol/String16WTF.h

 // Copyright 2016 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 String16WTF_h
 #define String16WTF_h
 
 #include "platform/Decimal.h"
 #include "public/platform/WebString.h"
 #include "wtf/text/StringBuilder.h"
 #include "wtf/text/StringConcatenate.h"
 #include "wtf/text/StringHash.h"
-#include "wtf/text/UTF8.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 namespace protocol {
 
-class String16 {
+class PLATFORM_EXPORT String16 {
 public:
     String16() { }
-    String16(const String16& other) : m_impl(other.m_impl) { }
-    String16(const UChar* u, unsigned length) : m_impl(u, length) { }
-    String16(const char* characters) : m_impl(characters) { }
-    String16(const char* characters, size_t size) : m_impl(characters, size) { }
-    String16(const WebString& other) : m_impl(other) { }
+    String16(const String16& other);
+    String16(const UChar*, unsigned);
+    String16(const char*);
+    String16(const char*, size_t);
+    static String16 createUninitialized(unsigned length, UChar*& data);
+
+    // WTF convenience constructors and helper methods.
+    String16(const WebString& other) : String16(String(other)) { }
     template<typename StringType1, typename StringType2>
-    String16(const WTF::StringAppend<StringType1, StringType2>& impl) : m_impl(impl) { }
+    String16(const WTF::StringAppend<StringType1, StringType2>& impl) : String16(String(impl)) { }
+    String16(const WTF::AtomicString& impl) : String16(String(impl)) { }
+    String16(const WTF::String& impl);
+    String16(WTF::HashTableDeletedValueType) : m_impl(WTF::HashTableDeletedValue) { }
+    bool isHashTableDeletedValue() const { return m_impl.isHashTableDeletedValue(); }
+    operator WTF::String() const { return m_impl; }
+    operator WebString() { return m_impl; }
+    const WTF::String& impl() const { return m_impl; }
+
     ~String16() { }
 
-    // Integration constructors.
-    String16(const WTF::String& impl) : m_impl(impl) { }
-    String16(const WTF::AtomicString& impl) : m_impl(impl) { }
-    String16(WTF::HashTableDeletedValueType) : m_impl(WTF::HashTableDeletedValue) { }
-
-    static String16 fromUTF8(const char* characters, size_t length) { return String::fromUTF8(characters, length); }
     static String16 number(int i) { return String::number(i); }
     static String16 fromDouble(double number) { return Decimal::fromDouble(number).toString(); }
-    static String16 createUninitialized(unsigned length, UChar*& data) { return String::createUninitialized(length, data); }
-    static bool codePointCompareLessThan(const String16& a, const String16& b)
-    {
-        return codePointCompare(a.impl(), b.impl()) < 0;
-    }
-
-    typedef enum {
-        conversionOK,
-        sourceExhausted,
-        targetExhausted,
-        sourceIllegal
-    } ConversionResult;
-
-    static ConversionResult convertUTF8ToUTF16(const char** sourceStart, const char* sourceEnd, UChar** targetStart, UChar* targetEnd, bool* isSourceAllASCII = 0, bool strict = true)
-    {
-        return static_cast<ConversionResult>(WTF::Unicode::convertUTF8ToUTF16(sourceStart, sourceEnd, targetStart, targetEnd, isSourceAllASCII, strict));
-    }
-
-    bool validateUTF8()
-    {
-        return !m_impl.utf8(StrictUTF8Conversion).isNull();
-    }
 
     size_t length() const { return m_impl.length(); }
     bool isEmpty() const { return m_impl.isEmpty(); }
-    bool isNull() const { return m_impl.isNull(); }
     UChar operator[](unsigned index) const { return m_impl[index]; }
 
-    bool is8Bit() const { return m_impl.is8Bit(); }
     unsigned sizeInBytes() const { return m_impl.sizeInBytes(); }
-    const LChar* characters8() const { return m_impl.characters8(); }
-    const UChar* characters16() const { return m_impl.characters16(); }
-    String16 latin1Data()
-    {
-        CString latin1 = m_impl.latin1();
-        // Include terminating zero.
-        return String16(latin1.data(), latin1.length() + 1);
-    }
-
-    operator WTF::String() const { return m_impl; }
-    operator WebString() const { return m_impl; }
-    WTF::String impl() const { return m_impl; }
+    const UChar* characters16() const { return m_impl.isEmpty() ? nullptr : m_impl.characters16(); }
 
     static double charactersToDouble(const LChar* characters, size_t length, bool* ok = 0) { return ::charactersToDouble(characters, length, ok); }
     static double charactersToDouble(const UChar* characters, size_t length, bool* ok = 0) { return ::charactersToDouble(characters, length, ok); }
 
     String16 substring(unsigned pos, unsigned len = UINT_MAX) const { return m_impl.substring(pos, len); }
-    String16 left(unsigned len) const { return m_impl.substring(0, len); }
     String16 stripWhiteSpace() const { return m_impl.stripWhiteSpace(); }
 
     int toInt(bool* ok = 0) const { return m_impl.toInt(ok); }
-    unsigned toUInt(bool* ok = 0) const { return m_impl.toUInt(ok); }
 
     size_t find(UChar c, unsigned start = 0) const { return m_impl.find(c, start); }
-    size_t find(const String16& str) const  { return m_impl.find(str.impl()); }
-    size_t find(const String16& str, unsigned start) const { return m_impl.find(str.impl(), start); }
+    size_t find(const String16& str, unsigned start = 0) const { return m_impl.find(str.impl(), start); }
     size_t reverseFind(const String16& str, unsigned start = UINT_MAX) const { return m_impl.reverseFind(str.impl(), start); }
 
-    void append(const String16& str) { m_impl.append(str); };
-    bool isHashTableDeletedValue() const { return m_impl.isHashTableDeletedValue(); }
-
     bool startWith(const String16& s) const { return m_impl.startsWith(s); }
     bool startWith(UChar character) const { return m_impl.startsWith(character); }
     bool endsWith(const String16& s) const { return m_impl.endsWith(s); }
     bool endsWith(UChar character) const { return m_impl.endsWith(character); }
 
 private:
     WTF::String m_impl;
 };
 
 class String16Builder {
@@ skipping 50 matching lines @@
 };
 
 template<typename T> struct DefaultHash;
 template<> struct DefaultHash<String16> {
     typedef String16Hash Hash;
 };
 
 template<>
 struct HashTraits<String16> : SimpleClassHashTraits<String16> {
     static const bool hasIsEmptyValueFunction = true;
-    static bool isEmptyValue(const String16& a) { return a.isNull(); }
+    static bool isEmptyValue(const String16& a) { return a.impl().isNull(); }
 };
 
 } // namespace WTF
 
 #endif // !defined(String16WTF_h)