Move tracing code in content\browser to content\browser\tracing now that there's a separate directo…

content/browser/trace_subscriber_stdio.h

-// Copyright (c) 2012 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_BROWSER_TRACE_SUBSCRIBER_STDIO_H_
-#define CONTENT_BROWSER_TRACE_SUBSCRIBER_STDIO_H_
-
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "base/file_util.h"
-#include "content/public/browser/trace_subscriber.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-class TraceSubscriberStdioImpl;
-
-// Stdio implementation of TraceSubscriber. Use this to write traces to a file.
-class CONTENT_EXPORT TraceSubscriberStdio
-    : NON_EXPORTED_BASE(public TraceSubscriber) {
- public:
-  // Creates or overwrites the specified file. Check IsValid() for success.
-  explicit TraceSubscriberStdio(const FilePath& path);
-  virtual ~TraceSubscriberStdio();
-
-  // Implementation of TraceSubscriber
-  virtual void OnEndTracingComplete() OVERRIDE;
-  virtual void OnTraceDataCollected(
-      const scoped_refptr<base::RefCountedString>& data_ptr) OVERRIDE;
-
- private:
-  scoped_refptr<TraceSubscriberStdioImpl> impl_;
-  DISALLOW_COPY_AND_ASSIGN(TraceSubscriberStdio);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_TRACE_SUBSCRIBER_STDIO_H_