gesture recognizer: Some cleanup and workaround for a crash.

ui/base/gestures/gesture_sequence.h

Index: ui/base/gestures/gesture_sequence.h
diff --git a/ui/base/gestures/gesture_sequence.h b/ui/base/gestures/gesture_sequence.h
index ebde7bc746c1fafa2ac8584b43e751a9f8388aeb..3933ef7abec5b1715a3bead8dfdfd6dad494df7e 100644
--- a/ui/base/gestures/gesture_sequence.h
+++ b/ui/base/gestures/gesture_sequence.h
@@ -59,8 +59,6 @@ class UI_EXPORT GestureSequence {
   }
 
  private:
-  void Reset();
-
   // Recreates the axis-aligned bounding box that contains all the touch-points
   // at their most recent position.
   void RecreateBoundingBox();
@@ -144,9 +142,6 @@ class UI_EXPORT GestureSequence {
   bool ScrollUpdate(const TouchEvent& event,
                     const GesturePoint& point,
                     Gestures* gestures);
-  bool NoGesture(const TouchEvent& event,
-                 const GesturePoint& point,
-                 Gestures* gestures);
   bool TouchDown(const TouchEvent& event,
                  const GesturePoint& point,
                  Gestures* gestures);