Add the ability to configure feedback prompt frequency

chrome/browser/android/chrome_feature_list.cc

Index: chrome/browser/android/chrome_feature_list.cc
diff --git a/chrome/browser/android/chrome_feature_list.cc b/chrome/browser/android/chrome_feature_list.cc
index 085b7e296b9616fcbe99822075d6161c36656575..8e81b8f1e3aa0956fa147eadf5f2f622ac32f9ff 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -81,6 +81,7 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &kSpecialLocaleWrapper,
     &kTabReparenting,
     &kVideoPersistence,
+    &kVrBrowsingFeedback,
     &kVrCustomTabBrowsing,
     &kWebPaymentsModifiers,
     &kWebPaymentsSingleAppUiSkip,
@@ -223,6 +224,9 @@ const base::Feature kUserMediaScreenCapturing{
 const base::Feature kVideoPersistence{"VideoPersistence",
                                       base::FEATURE_ENABLED_BY_DEFAULT};
 
+const base::Feature kVrBrowsingFeedback{"VrBrowsingFeedback",
+                                        base::FEATURE_DISABLED_BY_DEFAULT};

[amp, 2017/05/20 00:13:09]

Don't we want this to be default enabled and only use the experiment for a kill
switch and paremeterization?

[ymalik, 2017/05/22 22:35:01]

Yes, you're right. Done.

+
 const base::Feature kVrCustomTabBrowsing{"VrCustomTabBrowsing",
                                          base::FEATURE_DISABLED_BY_DEFAULT};