Add a pref for a one-time wipe of gesture prefs

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 1f63833cc6dfad8ec70d0a90a631e5444dd070f8..8e39dea3fa302ec18c92ab40d4a7101a6728c49d 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2463,6 +2463,10 @@ const char kOverscrollHorizontalResistThreshold[] =
     "overscroll.horizontal_resist_threshold";
 const char kOverscrollVerticalResistThreshold[] =
     "overscroll.vertical_resist_threshold";
+// TODO(mohsen): Remove following pref in M32. By then, gesture prefs will have
+// been cleared for majority of the users: crbug.com/269292.
+// A temporary pref to do a one-time wipe of gesture preferences.
+const char kGestureConfigIsTrustworthy[] = "gesture.config_is_trustworthy";
 #endif
 
 // Counts how many more times the 'profile on a network share' warning should be