Disable MouseLatencyBrowserTest.CoalescedMouseMovesCorrectlyTerminated

Currently MouseLatencyBrowserTest.CoalescedMouseMovesCorrectlyTerminated is
disabled on Android, Windows and Linux due to flakes.

When running on Mac with --enable-features=VizDisplayCompositor I have also seen
this test flake.

I'm disabling the test on all platforms until it can be redesigned.

TEST: MouseLatencyBrowserTest.CoalescedMouseMovesCorrectlyTerminated
Bug: 801629
Change-Id: I9c98d3e8ab90f24f23f50d1657d49cf0c1c95c29
Reviewed-on: https://chromium-review.googlesource.com/1101299Reviewed-by: Timothy Dresser <tdresser@chromium.org>
Commit-Queue: Jonathan Ross <jonross@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567356}

content/browser/renderer_host/input/mouse_latency_browsertest.cc

@@ -371,16 +371,10 @@ IN_PROC_BROWSER_TEST_F(MouseLatencyBrowserTest,
 // events in the case where events are coalesced. (crbug.com/771165).
 // Disabled on Android because we don't support synthetic mouse input on Android
 // (crbug.com/723618).
-// http://crbug.com/801629 : Flaky on Linux and Windows
-#if defined(OS_ANDROID) || defined(OS_WIN) || defined(OS_LINUX)
-#define MAYBE_CoalescedMouseMovesCorrectlyTerminated \
-  DISABLED_CoalescedMouseMovesCorrectlyTerminated
-#else
-#define MAYBE_CoalescedMouseMovesCorrectlyTerminated \
-  CoalescedMouseMovesCorrectlyTerminated
-#endif
+// http://crbug.com/801629 : Flaky on Linux and Windows, and Mac with
+// --enable-features=VizDisplayCompositor
 IN_PROC_BROWSER_TEST_F(MouseLatencyBrowserTest,
-                       MAYBE_CoalescedMouseMovesCorrectlyTerminated) {
+                       DISABLED_CoalescedMouseMovesCorrectlyTerminated) {
   LoadURL();
 
   StartTracing();