Disable the flaky BrowserSideFlingBrowserTest.AutoscrollFling

TBR=dtapuska@chromium.org

Bug: 838769
Change-Id: I3b772a840d382805799cc32d2555ac363bbe4d75
Reviewed-on: https://chromium-review.googlesource.com/1088613Reviewed-by: Alexander Potapenko <glider@chromium.org>
Commit-Queue: Alexander Potapenko <glider@chromium.org>
Cr-Commit-Position: refs/heads/master@{#564850}

content/browser/renderer_host/input/fling_browsertest.cc

@@ -170,13 +170,8 @@ IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest, TouchpadFling) {
   }
 }
 
-// TODO(sahel): This test is flaking on OS_CHROMEOS https://crbug.com/838769
-#if defined(OS_ANDROID) || defined(OS_CHROMEOS)
-#define MAYBE_AutoscrollFling DISABLED_AutoscrollFling
-#else
-#define MAYBE_AutoscrollFling AutoscrollFling
-#endif
-IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest, MAYBE_AutoscrollFling) {
+// TODO(sahel): This test is flaky https://crbug.com/838769
+IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest, DISABLED_AutoscrollFling) {
   LoadURL(kBrowserFlingDataURL);
 
   // Start autoscroll with middle click.