Implementing uploading of a WebRTC diagnostic log.

content/browser/webrtc_log_manager.h

+// Copyright (c) 2013 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_WEBRTC_LOG_MANAGER_H_
+#define CONTENT_BROWSER_WEBRTC_LOG_MANAGER_H_
+
+#include "base/memory/singleton.h"
+#include "base/platform_file.h"
+#include "content/common/content_export.h"
+
+namespace base {
+class SharedMemory;
+}
+
+namespace net {
+class FileStream;
+}
+
+namespace content {
+
+// This is a singleton class running in the browser FILE thread.
+// It reads a WebRTC log from a partial circular buffer and compresses it to a
+// file, then notifies the embedder that the file is ready.
+class CONTENT_EXPORT WebRtcLogManager {
+ public:
+  static WebRtcLogManager* GetInstance();
+
+  // Takes ownership of |shared_memory|.
+  void UploadLog(base::SharedMemory* shared_memory, uint32 length,
+                 base::PlatformFile file);
+
+ private:
+  friend struct DefaultSingletonTraits<WebRtcLogManager>;
+
+  WebRtcLogManager();
+  virtual ~WebRtcLogManager();
+
+  void ReadAndCompressLog(uint8* input, uint32 input_size,
+                          base::PlatformFile output_file);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_WEBRTC_LOG_MANAGER_H_