The tracing service sometimes creates corrupt data

mojo/common/data_pipe_utils.h

Index: mojo/common/data_pipe_utils.h
diff --git a/mojo/common/data_pipe_utils.h b/mojo/common/data_pipe_utils.h
index c1fbc0e48ca1345bdf0750ff2f0b9fc888d20647..83355aab00b80759869e02b4ce7410b709aafdca 100644
--- a/mojo/common/data_pipe_utils.h
+++ b/mojo/common/data_pipe_utils.h
@@ -43,6 +43,10 @@ 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.