Disable flaky AboutFlagsBrowserTest.OriginFlagDisabled/*

TBR=asvitkine@chromium.org

Bug: 1010678
Change-Id: I5a82deae4e566652e4627bec84340a40754aa557
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1835895Reviewed-by: Yoichi Osato <yoichio@chromium.org>
Commit-Queue: Yoichi Osato <yoichio@chromium.org>
Auto-Submit: Yoichi Osato <yoichio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#702295}

chrome/browser/about_flags_browsertest.cc

@@ -179,7 +179,8 @@ IN_PROC_BROWSER_TEST_P(AboutFlagsBrowserTest, PRE_OriginFlagDisabled) {
             GetOriginListText(contents, kSwitchName));
 }
 
-IN_PROC_BROWSER_TEST_P(AboutFlagsBrowserTest, OriginFlagDisabled) {
+// Flaky. http://crbug.com/1010678
+IN_PROC_BROWSER_TEST_P(AboutFlagsBrowserTest, DISABLED_OriginFlagDisabled) {
   // Even though the feature is disabled, the switch is set directly via command
   // line.
   EXPECT_EQ(