Disable flaky test "FindInPageTest.CtrlEnter"

# COMPONENT: UI>Browser

TBR: tapted@chromium.org
Bug: 803743
Change-Id: Iabe7e265797ba0c37666016479687d51ef967a17
Reviewed-on: https://chromium-review.googlesource.com/875512Reviewed-by: Yoichi Osato <yoichio@chromium.org>
Commit-Queue: Yoichi Osato <yoichio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#530432}

chrome/browser/ui/views/find_bar_views_interactive_uitest.cc

@@ -509,7 +509,13 @@ IN_PROC_BROWSER_TEST_F(FindInPageTest, MAYBE_PasteWithoutTextChange) {
   EXPECT_TRUE(details.number_of_matches() > 0);
 }
 
-IN_PROC_BROWSER_TEST_F(FindInPageTest, CtrlEnter) {
+// Slow flakiness on Linux. crbug.com/803743
+#if defined(OS_LINUX)
+#define MAYBE_CtrlEnter DISABLED_CtrlEnter
+#else
+#define MAYBE_CtrlEnter CtrlEnter
+#endif
+IN_PROC_BROWSER_TEST_F(FindInPageTest, MAYBE_CtrlEnter) {
   ui_test_utils::NavigateToURL(browser(),
                                GURL("data:text/html,This is some text with a "
                                     "<a href=\"about:blank\">link</a>."));