Suppressing TestUdpReadyToSendIPv4 on ASan.

The test is flaky on Asan.

BUG=webrtc:4958

Review URL: https://codereview.webrtc.org/1388203004

Cr-Commit-Position: refs/heads/master@{#10313}
diff --git a/webrtc/base/physicalsocketserver_unittest.cc b/webrtc/base/physicalsocketserver_unittest.cc
index 568f88c..6c7be9f 100644
--- a/webrtc/base/physicalsocketserver_unittest.cc
+++ b/webrtc/base/physicalsocketserver_unittest.cc
@@ -214,14 +214,17 @@
 // Also disable for MSan, see:
 // https://code.google.com/p/webrtc/issues/detail?id=4958
 // TODO(deadbeef): Enable again once test is reimplemented to be unflaky.
-#if !defined(THREAD_SANITIZER) && !defined(MEMORY_SANITIZER)
-
-TEST_F(PhysicalSocketTest, TestUdpReadyToSendIPv4) {
+// Also disable for ASan.
+#if defined(THREAD_SANITIZER) || defined(MEMORY_SANITIZER) || \
+  defined(ADDRESS_SANITIZER)
+#define MAYBE_TestUdpReadyToSendIPv4 DISABLED_TestUdpReadyToSendIPv4
+#else
+#define MAYBE_TestUdpReadyToSendIPv4 TestUdpReadyToSendIPv4
+#endif
+TEST_F(PhysicalSocketTest, MAYBE_TestUdpReadyToSendIPv4) {
   SocketTest::TestUdpReadyToSendIPv4();
 }
 
-#endif // if !defined(THREAD_SANITIZER) && !defined(MEMORY_SANITIZER)
-
 TEST_F(PhysicalSocketTest, TestUdpReadyToSendIPv6) {
   SocketTest::TestUdpReadyToSendIPv6();
 }