[DevTools] Migrate v8_inspector/public from String16 to String{View,Buffer}.

third_party/WebKit/Source/core/inspector/V8InspectorString.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 V8InspectorString_h
+#define V8InspectorString_h
+
+#include "core/CoreExport.h"
+#include "platform/v8_inspector/public/StringBuffer.h"
+#include "platform/v8_inspector/public/StringView.h"
+#include "wtf/text/StringView.h"
+#include "wtf/text/WTFString.h"
+
+#include <memory>
+
+namespace blink {
+
+// Note that passed string must outlive the resulting StringView. This implies it must not be a temporary object.
+CORE_EXPORT v8_inspector::StringView toV8InspectorStringView(const StringView&);
+CORE_EXPORT std::unique_ptr<v8_inspector::StringBuffer> toV8InspectorStringBuffer(const StringView&);
+CORE_EXPORT String toCoreString(const v8_inspector::StringView&);
+CORE_EXPORT String toCoreString(std::unique_ptr<v8_inspector::StringBuffer>);
+
+} // namespace blink
+
+#endif // V8InspectorString_h