The tracing service sometimes creates corrupt data

mojo/common/data_pipe_utils.h

 // Copyright 2014 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 MOJO_SHELL_DATA_PIPE_UTILS_H_
 #define MOJO_SHELL_DATA_PIPE_UTILS_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
@@ skipping 25 matching lines @@
              base::TaskRunner* task_runner,
              const base::Callback<void(bool /*success*/)>& callback);
 
 // Copies the data from |source| into |contents| and returns true on success and
 // false on error.  In case of I/O error, |contents| holds the data that could
 // be read from source before the error occurred.
 bool MOJO_COMMON_EXPORT BlockingCopyToString(
     ScopedDataPipeConsumerHandle source,
     std::string* contents);
 
+bool MOJO_COMMON_EXPORT BlockingCopyFromString(
+    const std::string& source,
+    const ScopedDataPipeProducerHandle& destination);
+
 // Synchronously copies data from source to the destination file returning true
 // on success and false on error.  In case of an error, |destination| holds the
 // data that could be read from the source before the error occured.
 bool MOJO_COMMON_EXPORT BlockingCopyToFile(ScopedDataPipeConsumerHandle source,
                                            const base::FilePath& destination);
 
 }  // namespace common
 }  // namespace mojo
 
 #endif  // MOJO_SHELL_DATA_PIPE_UTILS_H_