Remove more things

runtime/vm/trace_buffer.h

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#ifndef VM_TRACE_BUFFER_H_
-#define VM_TRACE_BUFFER_H_
-
-#include "platform/assert.h"
-#include "platform/globals.h"
-#include "vm/json_stream.h"
-
-namespace dart {
-
-class JSONStream;
-class Script;
-
-struct TraceBufferEntry {
-  int64_t micros;
-  char* message;
-  bool message_is_escaped;
-  bool empty() const {
-    return message == NULL;
-  }
-};
-
-class TraceBuffer {
- public:
-  static const intptr_t kDefaultCapacity = 1024;
-
-  static void Init(Isolate* isolate, intptr_t capacity = kDefaultCapacity);
-
-  ~TraceBuffer();
-
-  void Clear();
-
-  // Internally message is copied.
-  void Trace(int64_t micros, const char* msg, bool msg_is_escaped = false);
-  // Internally message is copied.
-  void Trace(const char* msg, bool msg_is_escaped = false);
-  void TraceF(const char* format, ...) PRINTF_ATTRIBUTE(2, 3);
-
-  void PrintToJSONStream(JSONStream* stream) const;
-
-  // Accessors for testing.
-  TraceBufferEntry* At(intptr_t i) const { return &ring_[RingIndex(i)]; }
-  intptr_t Length() const { return ring_cursor_; }
-
- private:
-  TraceBuffer(Isolate* isolate, intptr_t capacity);
-  void Cleanup();
-  void Fill(TraceBufferEntry* entry, int64_t micros,
-            char* msg, bool msg_is_escaped = false);
-  void AppendTrace(int64_t micros, char* msg, bool msg_is_escaped = false);
-
-  Isolate* isolate_;
-  TraceBufferEntry* ring_;
-  const intptr_t ring_capacity_;
-  intptr_t ring_cursor_;
-
-  intptr_t RingIndex(intptr_t i) const {
-    return i % ring_capacity_;
-  }
-
-  DISALLOW_COPY_AND_ASSIGN(TraceBuffer);
-};
-
-
-}  // namespace dart
-
-#endif  // VM_TRACE_BUFFER_H_