Disable flaky TracingBrowserTest.TestBackgroundMemoryInfra on mac/asan.

chrome/test/base/tracing_browsertest.cc

Index: chrome/test/base/tracing_browsertest.cc
diff --git a/chrome/test/base/tracing_browsertest.cc b/chrome/test/base/tracing_browsertest.cc
index c5df112331f0501c248db1eecbae225e1f61c8b1..5357049fb6a68e05745939126fabfc73c64e59fe 100644
--- a/chrome/test/base/tracing_browsertest.cc
+++ b/chrome/test/base/tracing_browsertest.cc
@@ -107,7 +107,13 @@ IN_PROC_BROWSER_TEST_F(TracingBrowserTest, TestMemoryInfra) {
       base::trace_event::MemoryDumpLevelOfDetail::DETAILED);
 }
 
-IN_PROC_BROWSER_TEST_F(TracingBrowserTest, TestBackgroundMemoryInfra) {
+// crbug.com/708487.
+#if defined(OS_MACOSX) && defined(ADDRESS_SANITIZER)
+#define MAYBE_TestBackgroundMemoryInfra DISABLED_TestBackgroundMemoryInfra
+#else
+#define MAYBE_TestBackgroundMemoryInfra TestBackgroundMemoryInfra
+#endif  // defined(OS_MACOSX) && defined(ADDRESS_SANITIZER)
+IN_PROC_BROWSER_TEST_F(TracingBrowserTest, MAYBE_TestBackgroundMemoryInfra) {
   PerformDumpMemoryTestActions(
       base::trace_event::TraceConfig(
           base::trace_event::TraceConfigMemoryTestUtil::