Fix typo in disabled SafetyTipPageInfoBubbleViewBrowserTest test.

TBR=jdeblasio@chromium.org

Bug: 1139955
Change-Id: Ib622080583b8ebf3764b75513346d179e1be43f8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2494762Reviewed-by: Bret Sepulveda <bsep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#820193}

chrome/browser/ui/views/page_info/safety_tip_page_info_bubble_view_browsertest.cc

@@ -856,7 +856,7 @@ IN_PROC_BROWSER_TEST_P(SafetyTipPageInfoBubbleViewBrowserTest,
 // Tests that the SafetyTipShown histogram triggers correctly.
 // Flaky on all platforms: https://crbug.com/1139955
 IN_PROC_BROWSER_TEST_P(SafetyTipPageInfoBubbleViewBrowserTest,
-                       DISABLE_SafetyTipShownHistogram) {
+                       DISABLED_SafetyTipShownHistogram) {
   const char kHistogramName[] = "Security.SafetyTips.SafetyTipShown";
   base::HistogramTester histograms;