Update gesture logic.

athena/home/home_card_gesture_manager.h

 // Copyright 2014 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.
 
 #ifndef ATHENA_HOME_HOME_CARD_GESTURE_MANAGER_H_
 #define ATHENA_HOME_HOME_CARD_GESTURE_MANAGER_H_
 
 #include "athena/home/public/home_card.h"
 #include "athena/athena_export.h"
 #include "ui/gfx/geometry/rect.h"
@@ skipping 34 matching lines @@
 
  private:
   // Get the closest state from the last position.
   HomeCard::State GetClosestState() const;
 
   // Update the current position and emits OnGestureProgressed().
   void UpdateScrollState(const ui::GestureEvent& event);
 
   Delegate* delegate_;  // Not owned.
 
+  // The state when the gesture starts.
+  HomeCard::State original_state_;
+
   // The offset from the top edge of the home card and the initial position of
   // gesture.
   int y_offset_;
 
   // The estimated height of the home card after the last touch event.
   int last_estimated_height_;
 
   // The bounds of the screen to compute the home card bounds.
   gfx::Rect screen_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(HomeCardGestureManager);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_HOME_HOME_CARD_GESTURE_MANAGER_H_