Implementing uploading of a WebRTC diagnostic log.

chrome/browser/webrtc_log_upload_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 CHROME_BROWSER_WEBRTC_LOG_UPLOAD_MANAGER_H_
+#define CHROME_BROWSER_WEBRTC_LOG_UPLOAD_MANAGER_H_
+
+#include "base/basictypes.h"
+#include "base/shared_memory.h"
+#include "net/url_request/url_fetcher_delegate.h"
+#include "net/url_request/url_request_context.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace net {
+class FileStream;
+class URLFetcher;
+}
+
+class WebRtcLogURLRequestContextGetter;
+
+// WebRtcLogUploadManager handles uploading WebRTC logs. It's owned by
+// BrowserProcessImpl. WebRtcLoggingHandlerHost calls it when a log should be
+// uploaded and given a shared memory buffer with the log data to be uploaded.
+class WebRtcLogUploadManager : public net::URLFetcherDelegate {
+ public:
+  WebRtcLogUploadManager();
+  virtual ~WebRtcLogUploadManager();
+
+  // net::URLFetcherDelegate implementation.
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
+  virtual void OnURLFetchUploadProgress(const net::URLFetcher* source,
+                                        int64 current, int64 total) OVERRIDE;
+
+  // Takes ownership of |shared_memory|.
+  void UploadLog(base::SharedMemory* shared_memory, uint32 length);
+
+ private:
+  void ReadAndCompressLog(uint8* input, uint32 input_size,
+                          uint8* output, uint32* output_size);
+  void SetupUpload(uint8* output, uint32 output_size);
+  void AddPairString(const std::string& key, const std::string& value);
+  void AddUrlChunks();
+  void AddLogData(uint8* log_data, uint32 log_data_size);
+
+  std::vector<net::URLFetcher*> url_fetchers_;
+  scoped_refptr<WebRtcLogURLRequestContextGetter>
+      request_context_getter_;
+
+  scoped_ptr<net::FileStream> file_stream_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebRtcLogUploadManager);
+};
+
+#endif  // CHROME_BROWSER_WEBRTC_LOG_UPLOAD_MANAGER_H_