Revert of Disable WebRtcMediaRecorderTest.PeerConnection on Linux TSan (flaky)

content/browser/webrtc/webrtc_media_recorder_browsertest.cc

 // Copyright 2015 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.
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "content/browser/webrtc/webrtc_content_browsertest_base.h"
 #include "content/public/common/content_switches.h"
@@ skipping 132 matching lines @@
 IN_PROC_BROWSER_TEST_F(WebRtcMediaRecorderTest,
                        IllegalRequestDataThrowsDOMError) {
   MakeTypicalCall("testIllegalRequestDataThrowsDOMError();",
                   kMediaRecorderHtmlFile);
 }
 
 #if defined(OS_ANDROID) && defined(ADDRESS_SANITIZER)
 // Parametrizations 1/2 (VP8/VP9+disabled) time out under Android ASAN:
 // https://crbug.com/693565.
 #define MAYBE_PeerConnection DISABLED_PeerConnection
-#elif defined(OS_LINUX) && defined(THREAD_SANITIZER)
-// Flaky on Linux TSan, https://crbug.com/694373.
-#define MAYBE_PeerConnection DISABLED_PeerConnection
 #else
 #define MAYBE_PeerConnection PeerConnection
 #endif
 
 IN_PROC_BROWSER_TEST_P(WebRtcMediaRecorderTest, MAYBE_PeerConnection) {
   MaybeForceDisableEncodeAccelerator(GetParam().disable_accelerator);
   MakeTypicalCall(base::StringPrintf("testRecordRemotePeerConnection(\"%s\");",
                                      GetParam().mime_type.c_str()),
                   kMediaRecorderHtmlFile);
 }
 
 IN_PROC_BROWSER_TEST_F(WebRtcMediaRecorderTest,
                        AddingTrackToMediaStreamFiresErrorEvent) {
   MakeTypicalCall("testAddingTrackToMediaStreamFiresErrorEvent();",
                   kMediaRecorderHtmlFile);
 }
 
 IN_PROC_BROWSER_TEST_F(WebRtcMediaRecorderTest,
                        RemovingTrackFromMediaStreamFiresErrorEvent) {
   MakeTypicalCall("testRemovingTrackFromMediaStreamFiresErrorEvent();",
                   kMediaRecorderHtmlFile);
 }
 
 INSTANTIATE_TEST_CASE_P(,
                         WebRtcMediaRecorderTest,
                         testing::ValuesIn(kEncodingParameters));
 
 }  // namespace content