Disable ExtensionWindowLastFocusedTest.NoDevtoolsAndAppWindows.

The test is flaky.

TBR=fdegans@chromium.org

Bug: 1035622
Change-Id: Ifc0ba6dee39ceac1f3948322a2bcbf1769a7f284
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1981057Reviewed-by: Fabrice de Gans-Riberi <fdegans@chromium.org>
Commit-Queue: Fabrice de Gans-Riberi <fdegans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727261}

chrome/browser/extensions/api/tabs/tabs_test.cc

@@ -912,8 +912,9 @@ IN_PROC_BROWSER_TEST_F(ExtensionWindowLastFocusedTest,
   DevToolsWindowTesting::CloseDevToolsWindowSync(devtools);
 }
 
+// Flaky. https://crbug.com/1035622
 IN_PROC_BROWSER_TEST_F(ExtensionWindowLastFocusedTest,
-                       NoDevtoolsAndAppWindows) {
+                       DISABLED_NoDevtoolsAndAppWindows) {
   DevToolsWindow* devtools = DevToolsWindowTesting::OpenDevToolsWindowSync(
       browser()->tab_strip_model()->GetWebContentsAt(0), false /* is_docked */);
   {