Remove empty-string comparisons.

webrtc/video/end_to_end_tests.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include <algorithm>
@@ skipping 1983 matching lines @@
             stats.rtp_stats.transmitted.padding_bytes != 0 ||
             stats.rtp_stats.retransmitted.packets != 0;
 
         receive_stats_filled_["CodecStats"] |=
             stats.target_delay_ms != 0 || stats.discarded_packets != 0;
 
         receive_stats_filled_["FrameCounts"] |=
             stats.frame_counts.key_frames != 0 ||
             stats.frame_counts.delta_frames != 0;
 
-        receive_stats_filled_["CName"] |= stats.c_name != "";
+        receive_stats_filled_["CName"] |= !stats.c_name.empty();
 
         receive_stats_filled_["RtcpPacketTypeCount"] |=
             stats.rtcp_packet_type_counts.fir_packets != 0 ||
             stats.rtcp_packet_type_counts.nack_packets != 0 ||
             stats.rtcp_packet_type_counts.pli_packets != 0 ||
             stats.rtcp_packet_type_counts.nack_requests != 0 ||
             stats.rtcp_packet_type_counts.unique_nack_requests != 0;
       }
 
       return AllStatsFilled(receive_stats_filled_);
@@ skipping 816 matching lines @@
   EXPECT_TRUE(default_receive_config.rtp.rtx.empty())
       << "Enabling RTX requires rtpmap: rtx negotiation.";
   EXPECT_TRUE(default_receive_config.rtp.extensions.empty())
       << "Enabling RTP extensions require negotiation.";
 
   VerifyEmptyNackConfig(default_receive_config.rtp.nack);
   VerifyEmptyFecConfig(default_receive_config.rtp.fec);
 }
 
 }  // namespace webrtc