Disable flaky test AutomationApiTest.DesktopFocusIframe

chrome/browser/extensions/api/automation/automation_apitest.cc

Index: chrome/browser/extensions/api/automation/automation_apitest.cc
diff --git a/chrome/browser/extensions/api/automation/automation_apitest.cc b/chrome/browser/extensions/api/automation/automation_apitest.cc
index b94c1519bc11019b27277caf3a0de966c0bcbd36..88d7b90af69fb7016cba945c55f65cda6fd8cebd 100644
--- a/chrome/browser/extensions/api/automation/automation_apitest.cc
+++ b/chrome/browser/extensions/api/automation/automation_apitest.cc
@@ -193,7 +193,8 @@ IN_PROC_BROWSER_TEST_F(AutomationApiTest, DesktopFocusWeb) {
       << message_;
 }
 
-IN_PROC_BROWSER_TEST_F(AutomationApiTest, DesktopFocusIframe) {
+// Flaky, see https://crbug.com/724923.
+IN_PROC_BROWSER_TEST_F(AutomationApiTest, DISABLED_DesktopFocusIframe) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(
       RunExtensionSubtest("automation/tests/desktop", "focus_iframe.html"))