| Index: net/http/bidirectional_stream.cc | 
| diff --git a/net/http/bidirectional_stream.cc b/net/http/bidirectional_stream.cc | 
| index e9e98a7f9ac45e1a6b418a1c4a2c68ec3fc4e6dc..d7a4a2ea6eebef7da97a03fd3b23aca1705c010d 100644 | 
| --- a/net/http/bidirectional_stream.cc | 
| +++ b/net/http/bidirectional_stream.cc | 
| @@ -391,30 +391,30 @@ void BidirectionalStream::UpdateHistograms() { | 
| return; | 
| } | 
| if (GetProtocol() == kProtoHTTP2) { | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.HTTP2.TimeToReadStart", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToReadStart.HTTP2", | 
| read_start_time_ - start_time_); | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.HTTP2.TimeToReadEnd", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToReadEnd.HTTP2", | 
| read_end_time_ - start_time_); | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.HTTP2.TimeToSendStart", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToSendStart.HTTP2", | 
| send_start_time_ - start_time_); | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.HTTP2.TimeToSendEnd", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToSendEnd.HTTP2", | 
| send_end_time_ - start_time_); | 
| -    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.HTTP2.ReceivedBytes", | 
| +    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.ReceivedBytes.HTTP2", | 
| stream_impl_->GetTotalReceivedBytes()); | 
| -    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.HTTP2.SentBytes", | 
| +    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.SentBytes.HTTP2", | 
| stream_impl_->GetTotalSentBytes()); | 
| } else if (GetProtocol() == kProtoQUIC1SPDY3) { | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.QUIC.TimeToReadStart", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToReadStart.QUIC", | 
| read_start_time_ - start_time_); | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.QUIC.TimeToReadEnd", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToReadEnd.QUIC", | 
| read_end_time_ - start_time_); | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.QUIC.TimeToSendStart", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToSendStart.QUIC", | 
| send_start_time_ - start_time_); | 
| -    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.QUIC.TimeToSendEnd", | 
| +    UMA_HISTOGRAM_TIMES("Net.BidirectionalStream.TimeToSendEnd.QUIC", | 
| send_end_time_ - start_time_); | 
| -    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.QUIC.ReceivedBytes", | 
| +    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.ReceivedBytes.QUIC", | 
| stream_impl_->GetTotalReceivedBytes()); | 
| -    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.QUIC.SentBytes", | 
| +    UMA_HISTOGRAM_COUNTS("Net.BidirectionalStream.SentBytes.QUIC", | 
| stream_impl_->GetTotalSentBytes()); | 
| } | 
| } | 
|  |