Revert of Add BWE plot to event log analyzer.

webrtc/call/rtc_event_log.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 20 matching lines @@
 // Files generated at build-time by the protobuf compiler.
 #ifdef WEBRTC_ANDROID_PLATFORM_BUILD
 #include "external/webrtc/webrtc/call/rtc_event_log.pb.h"
 #else
 #include "webrtc/call/rtc_event_log.pb.h"
 #endif
 #endif
 
 namespace webrtc {
 
+// No-op implementation is used if flag is not set, or in tests.
+class RtcEventLogNullImpl final : public RtcEventLog {
+ public:
+  bool StartLogging(const std::string& file_name,
+                    int64_t max_size_bytes) override {
+    return false;
+  }
+  bool StartLogging(rtc::PlatformFile platform_file,
+                    int64_t max_size_bytes) override {
+    // The platform_file is open and needs to be closed.
+    if (!rtc::ClosePlatformFile(platform_file)) {
+      LOG(LS_ERROR) << "Can't close file.";
+    }
+    return false;
+  }
+  void StopLogging() override {}
+  void LogVideoReceiveStreamConfig(
+      const VideoReceiveStream::Config& config) override {}
+  void LogVideoSendStreamConfig(
+      const VideoSendStream::Config& config) override {}
+  void LogRtpHeader(PacketDirection direction,
+                    MediaType media_type,
+                    const uint8_t* header,
+                    size_t packet_length) override {}
+  void LogRtcpPacket(PacketDirection direction,
+                     MediaType media_type,
+                     const uint8_t* packet,
+                     size_t length) override {}
+  void LogAudioPlayout(uint32_t ssrc) override {}
+  void LogBwePacketLossEvent(int32_t bitrate,
+                             uint8_t fraction_loss,
+                             int32_t total_packets) override {}
+};
+
 #ifdef ENABLE_RTC_EVENT_LOG
 
 class RtcEventLogImpl final : public RtcEventLog {
  public:
   explicit RtcEventLogImpl(const Clock* clock);
   ~RtcEventLogImpl() override;
 
   bool StartLogging(const std::string& file_name,
                     int64_t max_size_bytes) override;
   bool StartLogging(rtc::PlatformFile platform_file,
@@ skipping 376 matching lines @@
 #else
   return std::unique_ptr<RtcEventLog>(new RtcEventLogNullImpl());
 #endif  // ENABLE_RTC_EVENT_LOG
 }
 
 std::unique_ptr<RtcEventLog> RtcEventLog::CreateNull() {
   return std::unique_ptr<RtcEventLog>(new RtcEventLogNullImpl());
 }
 
 }  // namespace webrtc