[inspector] Initial import of v8_inspector.

src/inspector/public/V8StackTrace.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_PUBLIC_V8STACKTRACE_H_
+#define V8_INSPECTOR_PUBLIC_V8STACKTRACE_H_
+
+#include "src/inspector/public/StringBuffer.h"
+#include "src/inspector/public/StringView.h"
+#include "src/inspector/public/protocol/Runtime.h"
+
+namespace v8_inspector {
+
+class V8StackTrace {
+ public:
+  virtual bool isEmpty() const = 0;
+  virtual StringView topSourceURL() const = 0;
+  virtual int topLineNumber() const = 0;
+  virtual int topColumnNumber() const = 0;
+  virtual StringView topScriptId() const = 0;
+  virtual StringView topFunctionName() const = 0;
+
+  virtual ~V8StackTrace() {}
+  virtual std::unique_ptr<protocol::Runtime::API::StackTrace>
+  buildInspectorObject() const = 0;
+  virtual std::unique_ptr<StringBuffer> toString() const = 0;
+
+  // Safe to pass between threads, drops async chain.
+  virtual std::unique_ptr<V8StackTrace> clone() = 0;
+};
+
+}  // namespace v8_inspector
+
+#endif  // V8_INSPECTOR_PUBLIC_V8STACKTRACE_H_