Remove navigator.vibrate without user gesture.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 8fed82549c57f7f4de2dca44846afe7b53ab8de1..ee3420326266238be76db3cba2e2fc7de6036d73 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1286,7 +1286,6 @@ const FeatureEntry kFeatureEntries[] = {
      FEATURE_VALUE_TYPE(
          features::kCrossOriginMediaPlaybackRequiresUserGesture)},
 #endif  // !defined(OS_ANDROID)
-
 #if defined(OS_CHROMEOS)
     {"enable-virtual-keyboard", flag_descriptions::kVirtualKeyboardName,
      flag_descriptions::kVirtualKeyboardDescription, kOsCrOS,
@@ -2148,6 +2147,10 @@ const FeatureEntry kFeatureEntries[] = {
      flag_descriptions::kFramebustingName,
      flag_descriptions::kFramebustingDescription, kOsAll,
      FEATURE_VALUE_TYPE(features::kFramebustingNeedsSameOriginOrUserGesture)},
+    {"vibrate-requires-user-gesture",
+     flag_descriptions::kVibrateRequiresUserGestureName,
+     flag_descriptions::kVibrateRequiresUserGestureDescription, kOsAll,
+     FEATURE_VALUE_TYPE(features::kVibrateRequiresUserGesture)},
     {"web-payments", flag_descriptions::kWebPaymentsName,
      flag_descriptions::kWebPaymentsDescription, kOsDesktop,
      FEATURE_VALUE_TYPE(features::kWebPayments)},