Revert of Adjusts dragging logic to be less likely to trigger false positive switch from snapping to docking

ash/wm/workspace/two_step_edge_cycler.h

Index: ash/wm/workspace/two_step_edge_cycler.h
diff --git a/ash/wm/workspace/two_step_edge_cycler.h b/ash/wm/workspace/two_step_edge_cycler.h
index 3254cfd930ddb25851430636c2448f0c1f5190bd..01ca0866220f7808eacd3e769c99bed948e842f9 100644
--- a/ash/wm/workspace/two_step_edge_cycler.h
+++ b/ash/wm/workspace/two_step_edge_cycler.h
@@ -19,10 +19,7 @@
 // the workspace.
 class ASH_EXPORT TwoStepEdgeCycler {
  public:
-  // The direction in which a mouse should travel to switch mode.
-  enum Direction { DIRECTION_LEFT, DIRECTION_RIGHT };
-
-  explicit TwoStepEdgeCycler(const gfx::Point& start, Direction direction);
+  explicit TwoStepEdgeCycler(const gfx::Point& start);
   ~TwoStepEdgeCycler();
 
   // Update which mode should be used as a result of a mouse / touch move.
@@ -44,15 +41,6 @@
   // Initial x-coordinate.
   int start_x_;
 
-  // x-coordinate when paused.
-  int paused_x_;
-
-  // Whether the movement was paused.
-  bool paused_;
-
-  // Determines a preferred movement direction that we are watching.
-  Direction direction_;
-
   DISALLOW_COPY_AND_ASSIGN(TwoStepEdgeCycler);
 };