diff --git a/webrtc/system_wrappers/source/thread_unittest.cc b/webrtc/system_wrappers/source/thread_unittest.cc
index d37f45b5e..25095e659 100644
--- a/webrtc/system_wrappers/source/thread_unittest.cc
+++ b/webrtc/system_wrappers/source/thread_unittest.cc
@@ -20,10 +20,6 @@ bool NullRunFunction(void* obj) {
   return true;
 }
 
-// Disable for TSan v2, see
-// https://code.google.com/p/webrtc/issues/detail?id=2259 for details.
-#if !defined(THREAD_SANITIZER)
-
 TEST(ThreadTest, StartStop) {
   ThreadWrapper* thread = ThreadWrapper::CreateThread(&NullRunFunction, NULL);
   unsigned int id = 42;
@@ -54,6 +50,4 @@ TEST(ThreadTest, RunFunctionIsCalled) {
   delete thread;
 }
 
-#endif // if !defined(THREAD_SANITIZER)
-
 }  // namespace webrtc
diff --git a/webrtc/test/channel_transport/udp_socket_manager_unittest.cc b/webrtc/test/channel_transport/udp_socket_manager_unittest.cc
index eccd8ea02..d8e66b939 100644
--- a/webrtc/test/channel_transport/udp_socket_manager_unittest.cc
+++ b/webrtc/test/channel_transport/udp_socket_manager_unittest.cc
@@ -23,10 +23,6 @@
 namespace webrtc {
 namespace test {
 
-// Disable for TSan v2, see
-// https://code.google.com/p/webrtc/issues/detail?id=2334 for details.
-#if !defined(THREAD_SANITIZER)
-
 TEST(UdpSocketManager, CreateCallsInitAndDoesNotLeakMemory) {
   int32_t id = 42;
   uint8_t threads = 1;
@@ -84,7 +80,5 @@ TEST(UdpSocketManager, UnremovedSocketsGetCollectedAtManagerDeletion) {
 #endif
 }
 
-#endif // if !defined(THREAD_SANITIZER)
-
 }  // namespace test
 }  // namespace webrtc
diff --git a/webrtc/test/channel_transport/udp_transport_unittest.cc b/webrtc/test/channel_transport/udp_transport_unittest.cc
index 8ed204a28..5ccc9ef2b 100644
--- a/webrtc/test/channel_transport/udp_transport_unittest.cc
+++ b/webrtc/test/channel_transport/udp_transport_unittest.cc
@@ -108,10 +108,6 @@ private:
   std::vector<MockUdpSocketWrapper*> sockets_created_;
 };
 
-// Disable for TSan v2, see
-// https://code.google.com/p/webrtc/issues/detail?id=2334 for details.
-#if !defined(THREAD_SANITIZER)
-
 TEST_F(UDPTransportTest, CreateTransport) {
   int32_t id = 0;
   uint8_t threads = 1;
@@ -119,8 +115,6 @@ TEST_F(UDPTransportTest, CreateTransport) {
   UdpTransport::Destroy(transport);
 }
 
-#endif // if !defined(THREAD_SANITIZER)
-
 // This test verifies that the mock_socket is not called from the constructor.
 TEST_F(UDPTransportTest, ConstructorDoesNotCreateSocket) {
   int32_t id = 0;