Disable flaky ProcessMemoryMetricsEmitterTest.FetchThreeTimes

Flakes locally and on try bots.

R=erikchen@chromium.org
TBR=jwd

Bug: 731466
Change-Id: I85201eb31a56b553640f14a6a1cc9284231bedd8
Reviewed-on: https://chromium-review.googlesource.com/c/1459334
Commit-Queue: danakj <danakj@chromium.org>
Reviewed-by: Erik Chen <erikchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#630335}
diff --git a/chrome/browser/metrics/process_memory_metrics_emitter_browsertest.cc b/chrome/browser/metrics/process_memory_metrics_emitter_browsertest.cc
index d05c2cf..f56ee3f 100644
--- a/chrome/browser/metrics/process_memory_metrics_emitter_browsertest.cc
+++ b/chrome/browser/metrics/process_memory_metrics_emitter_browsertest.cc
@@ -744,12 +744,9 @@
   CheckPageInfoUkmMetrics(url, true);
 }
 
-#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER)
-#define MAYBE_FetchThreeTimes DISABLED_FetchThreeTimes
-#else
-#define MAYBE_FetchThreeTimes FetchThreeTimes
-#endif
-IN_PROC_BROWSER_TEST_F(ProcessMemoryMetricsEmitterTest, MAYBE_FetchThreeTimes) {
+// Flaky test: https://crbug.com/731466
+IN_PROC_BROWSER_TEST_F(ProcessMemoryMetricsEmitterTest,
+                       DISABLED_FetchThreeTimes) {
   ASSERT_TRUE(embedded_test_server()->Start());
   const GURL url = embedded_test_server()->GetURL("foo.com", "/empty.html");
   ui_test_utils::NavigateToURLWithDisposition(