Disable flaky VisitedLink.TestBigTable on macOS, Android.

TBR=sky

Bug: 1128183
Change-Id: Iff477f6c3f314a6be1237d59f66916e31786f2d8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2415129Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807636}

components/visitedlink/test/visitedlink_perftest.cc

@@ -12,6 +12,7 @@
 #include "base/test/scoped_run_loop_timeout.h"
 #include "base/test/test_file_util.h"
 #include "base/timer/elapsed_timer.h"
+#include "build/build_config.h"
 #include "components/visitedlink/browser/visitedlink_writer.h"
 #include "content/public/test/browser_task_environment.h"
 #include "content/public/test/test_utils.h"
@@ -182,7 +183,13 @@ TEST_F(VisitedLink, TestAddAndQuery) {
 }
 
 // Tests how long it takes to write and read a large database to and from disk.
-TEST_F(VisitedLink, TestBigTable) {
+// TODO(crbug.com/1128183): Fix flakiness on macOS and Android.
+#if defined(OS_MAC) || defined(OS_ANDROID)
+#define MAYBE_TestBigTable DISABLED_TestBigTable
+#else
+#define MAYBE_TestBigTable TestBigTable
+#endif
+TEST_F(VisitedLink, MAYBE_TestBigTable) {
   base::test::ScopedDisableRunLoopTimeout disable_run_timeout;
   // create a big DB
   {