Revert of [inspector] Initial import of v8_inspector.

src/inspector/StringUtil.h

-// Copyright 2016 the V8 project 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 V8_INSPECTOR_STRINGUTIL_H_
-#define V8_INSPECTOR_STRINGUTIL_H_
-
-#include "src/inspector/Allocator.h"
-#include "src/inspector/String16.h"
-#include "src/inspector/public/StringBuffer.h"
-#include "src/inspector/public/StringView.h"
-
-#include <v8.h>
-
-namespace v8_inspector {
-
-namespace protocol {
-
-class Value;
-
-using String = v8_inspector::String16;
-using StringBuilder = v8_inspector::String16Builder;
-
-class StringUtil {
-public:
-    static String substring(const String& s, unsigned pos, unsigned len) { return s.substring(pos, len); }
-    static String fromInteger(int number) { return String::fromInteger(number); }
-    static String fromDouble(double number) { return String::fromDouble(number); }
-    static const size_t kNotFound = String::kNotFound;
-    static void builderReserve(StringBuilder& builder, unsigned capacity) { builder.reserveCapacity(capacity); }
-};
-
-std::unique_ptr<protocol::Value> parseJSON(const StringView& json);
-std::unique_ptr<protocol::Value> parseJSON(const String16& json);
-
-} // namespace protocol
-
-std::unique_ptr<protocol::Value> toProtocolValue(v8::Local<v8::Context>, v8::Local<v8::Value>, int maxDepth = 1000);
-
-v8::Local<v8::String> toV8String(v8::Isolate*, const String16&);
-v8::Local<v8::String> toV8StringInternalized(v8::Isolate*, const String16&);
-v8::Local<v8::String> toV8StringInternalized(v8::Isolate*, const char*);
-v8::Local<v8::String> toV8String(v8::Isolate*, const StringView&);
-// TODO(dgozman): rename to toString16.
-String16 toProtocolString(v8::Local<v8::String>);
-String16 toProtocolStringWithTypeCheck(v8::Local<v8::Value>);
-String16 toString16(const StringView&);
-StringView toStringView(const String16&);
-bool stringViewStartsWith(const StringView&, const char*);
-
-class StringBufferImpl : public StringBuffer {
-    V8_INSPECTOR_DISALLOW_COPY(StringBufferImpl);
-public:
-    // Destroys string's content.
-    static std::unique_ptr<StringBufferImpl> adopt(String16&);
-    const StringView& string() override { return m_string; }
-
-private:
-    explicit StringBufferImpl(String16&);
-    String16 m_owner;
-    StringView m_string;
-};
-
-} //  namespace v8_inspector
-
-
-#endif // V8_INSPECTOR_STRINGUTIL_H_