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

ash/wm/workspace/workspace_window_resizer.h

Index: ash/wm/workspace/workspace_window_resizer.h
diff --git a/ash/wm/workspace/workspace_window_resizer.h b/ash/wm/workspace/workspace_window_resizer.h
index a05039b08f062fc0a7c87a39413b944e8c771cb9..13bc8ab6818f935f6397800d49b567ae696e0201 100644
--- a/ash/wm/workspace/workspace_window_resizer.h
+++ b/ash/wm/workspace/workspace_window_resizer.h
@@ -25,6 +25,9 @@ namespace wm {
 class WindowState;
 }
 
+// The edge to which the window should be snapped at the end of the drag.
+enum SnapType { SNAP_LEFT, SNAP_RIGHT, SNAP_NONE };
+
 // WindowResizer implementation for workspaces. This enforces that windows are
 // not allowed to vertically move or resize outside of the work area. As windows
 // are moved outside the work area they are shrunk. We remember the height of
@@ -67,13 +70,6 @@ class ASH_EXPORT WorkspaceWindowResizer : public WindowResizer {
  private:
   friend class WorkspaceWindowResizerTest;
 
-  // The edge to which the window should be snapped at the end of the drag.
-  enum SnapType {
-    SNAP_LEFT,
-    SNAP_RIGHT,
-    SNAP_NONE
-  };
-
   // Lays out the attached windows. |bounds| is the bounds of the main window.
   void LayoutAttachedWindows(gfx::Rect* bounds);