Gesture recognition constants should all be stored in the GestureConfiguration object.

chrome/common/pref_names.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Constants for the names of various preferences, for easier changing.
 
 #ifndef CHROME_COMMON_PREF_NAMES_H_
 #define CHROME_COMMON_PREF_NAMES_H_
 #pragma once
 
@@ skipping 653 matching lines @@
 extern const char kRecoveryComponentVersion[];
 extern const char kComponentUpdaterState[];
 
 extern const char kRestoreSessionStateDialogShown[];
 
 extern const char kWebIntentsEnabled[];
 
 #if defined(USE_AURA)
 extern const char kPinnedLauncherApps[];
 
-extern const char kMaximumSecondsBetweenDoubleClick[];
-extern const char kMaximumTouchDownDurationInSecondsForClick[];
-extern const char kMaximumTouchMoveInPixelsForClick[];
+extern const char kLongPressTimeInSeconds[];
+extern const char kMaxSecondsBetweenDoubleClick[];
+extern const char kMaxTouchDownDurationInSecondsForClick[];
+extern const char kMaxTouchMoveInPixelsForClick[];
+extern const char kMinDistanceForPinchScrollInPixels[];
 extern const char kMinFlickSpeedSquared[];
-extern const char kMinimumTouchDownDurationInSecondsForClick[];
+extern const char kMinPinchUpdateDistanceInPixels[];
+extern const char kMinRailBreakVelocity[];
+extern const char kMinScrollDeltaSquared[];
+extern const char kMinTouchDownDurationInSecondsForClick[];
+extern const char kPointsBufferedForVelocity[];
+extern const char kRailBreakProportion[];
+extern const char kRailStartProportion[];
 #endif
 
 extern const char kInManagedMode[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_