Disable OmniboxPopupContentsViewTest.PopupMatchesLocationBarBackground

Test is flaky on CrOS

TBR=reillyg@chromium.org

Bug: 1113839
Change-Id: I31ee8f7c4954f363a2f7b462091ff9fd5cf7c794
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2341152Reviewed-by: Fabio Tirelo <ftirelo@chromium.org>
Commit-Queue: Fabio Tirelo <ftirelo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#795598}

chrome/browser/ui/views/omnibox/omnibox_popup_contents_view_browsertest.cc

@@ -358,8 +358,16 @@ IN_PROC_BROWSER_TEST_F(OmniboxPopupContentsViewTest, MAYBE_ClickOmnibox) {
 // Check that the location bar background (and the background of the textfield
 // it contains) changes when it receives focus, and matches the popup background
 // color.
+#if defined(OS_CHROMEOS)
+// TODO(http://crbug.com/1113839): flaky on ChromeOS.
+#define MAYBE_PopupMatchesLocationBarBackground \
+  DISABLED_PopupMatchesLocationBarBackground
+#else
+#define MAYBE_PopupMatchesLocationBarBackground \
+  PopupMatchesLocationBarBackground
+#endif
 IN_PROC_BROWSER_TEST_F(OmniboxPopupContentsViewTest,
-                       PopupMatchesLocationBarBackground) {
+                       MAYBE_PopupMatchesLocationBarBackground) {
   // In dark mode the omnibox focused and unfocused colors are the same, which
   // makes this test fail; see comments below.
   BrowserView::GetBrowserViewForBrowser(browser())