[M118][Gardener] Disable ChromeWebPlatformSecurityMetricsBrowserTest.…

…DanglingMarkupInTargetWithNewLineOrGreaterThan on Mac devices

The test was consistently failing on m118 Mac builds.

(cherry picked from commit 70a0f92)

Bug: 1487325
Change-Id: Ifb0a2436f7e36f08004389d2204065a0ba1ddd34
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4930890
Owners-Override: Vidhan Jain <vidhanj@google.com>
Reviewed-by: Adem Derinel <derinel@google.com>
Commit-Queue: Vidhan Jain <vidhanj@google.com>
Cr-Original-Commit-Position: refs/heads/main@{#1208151}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4948066
Auto-Submit: Elaine Chien <elainechien@chromium.org>
Owners-Override: Elaine Chien <elainechien@google.com>
Reviewed-by: Katie Dektar <katie@chromium.org>
Commit-Queue: Katie Dektar <katie@chromium.org>
Owners-Override: Katie Dektar <katie@chromium.org>
Cr-Commit-Position: refs/branch-heads/5993@{#1324}
Cr-Branched-From: 5113507-refs/heads/main@{#1192594}

chrome/browser/chrome_web_platform_security_metrics_browsertest.cc

@@ -2369,8 +2369,16 @@ IN_PROC_BROWSER_TEST_F(ChromeWebPlatformSecurityMetricsBrowserTest,
   CheckCounter(WebFeature::kDanglingMarkupInTargetNotEndsWithNewLineOrGT, 0);
 }
 
-IN_PROC_BROWSER_TEST_F(ChromeWebPlatformSecurityMetricsBrowserTest,
-                       DanglingMarkupInTargetWithNewLineOrGreaterThan) {
+// TODO(https://crbug.com/1487325): Fix and reenable the test for Mac.
+#if BUILDFLAG(IS_MAC)
+#define MAYBE_DanglingMarkupInTargetWithNewLineOrGreaterThan \
+  DISABLED_DanglingMarkupInTargetWithNewLineOrGreaterThan
+#else
+#define MAYBE_DanglingMarkupInTargetWithNewLineOrGreaterThan \
+  DanglingMarkupInTargetWithNewLineOrGreaterThan
+#endif
+IN_PROC_BROWSER_TEST_F(ChromeWebPlatformSecurityMetricsBrowserTest,
+                       MAYBE_DanglingMarkupInTargetWithNewLineOrGreaterThan) {
   GURL url = https_server().GetURL("a.test", "/empty.html");
   EXPECT_TRUE(content::NavigateToURL(web_contents(), url));
   EXPECT_TRUE(content::ExecJs(web_contents(), R"(