Add CrossThreadCopier and isolatedCopy() to SourceLocation.

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"
@@ skipping 17 matching lines @@
     String16(const WebString& other) : String16(String(other)) { }
     template<typename StringType1, typename StringType2>
     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 isolatedCopy() const { return String16(m_impl.isolatedCopy()); }
 
     ~String16() { }
 
     static String16 number(int i) { return String::number(i); }
     static String16 fromDouble(double number) { return Decimal::fromDouble(number).toString(); }
     static String16 fromDoubleFixedPrecision(double number, int precision) { return String::numberToStringFixedWidth(number, precision); }
 
     size_t length() const { return m_impl.length(); }
     bool isEmpty() const { return m_impl.isEmpty(); }
     UChar operator[](unsigned index) const { return m_impl[index]; }
@@ skipping 82 matching lines @@
 
 template<>
 struct HashTraits<String16> : SimpleClassHashTraits<String16> {
     static const bool hasIsEmptyValueFunction = true;
     static bool isEmptyValue(const String16& a) { return a.impl().isNull(); }
 };
 
 } // namespace WTF
 
 #endif // !defined(String16WTF_h)