|  | // 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 CONTENT_RENDERER_TOP_LEVEL_BLAME_CONTEXT_H_ | 
|  | #define CONTENT_RENDERER_TOP_LEVEL_BLAME_CONTEXT_H_ | 
|  |  | 
|  | #include "base/trace_event/blame_context.h" | 
|  |  | 
|  | namespace content { | 
|  |  | 
|  | // A blame context which spans all the frames in this renderer. Used for | 
|  | // attributing work which cannot be associated with a specific frame (e.g., | 
|  | // garbage collection). | 
|  | class TopLevelBlameContext : public base::trace_event::BlameContext { | 
|  | public: | 
|  | TopLevelBlameContext(); | 
|  |  | 
|  | private: | 
|  | DISALLOW_COPY_AND_ASSIGN(TopLevelBlameContext); | 
|  | }; | 
|  |  | 
|  | }  // namespace content | 
|  |  | 
|  | #endif  // CONTENT_RENDERER_TOP_LEVEL_BLAME_CONTEXT_H_ |