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

ash/wm/workspace/workspace_window_resizer.cc

Index: ash/wm/workspace/workspace_window_resizer.cc
diff --git a/ash/wm/workspace/workspace_window_resizer.cc b/ash/wm/workspace/workspace_window_resizer.cc
index bd1ef257747d2e1e568c615c36496843f3c44771..73ba6fb89d02007071fb2eb83be349d88da418cf 100644
--- a/ash/wm/workspace/workspace_window_resizer.cc
+++ b/ash/wm/workspace/workspace_window_resizer.cc
@@ -941,10 +941,14 @@ void WorkspaceWindowResizer::UpdateSnapPhantomWindow(const gfx::Point& location,
     edge_cycler_.reset();
     return;
   }
-  if (!edge_cycler_)
-    edge_cycler_.reset(new TwoStepEdgeCycler(location));
-  else
+  if (!edge_cycler_) {
+    edge_cycler_.reset(new TwoStepEdgeCycler(
+        location, snap_type_ == SNAP_LEFT
+                      ? TwoStepEdgeCycler::DIRECTION_LEFT
+                      : TwoStepEdgeCycler::DIRECTION_RIGHT));
+  } else {
     edge_cycler_->OnMove(location);
+  }
 
   // Update phantom window with snapped or docked guide bounds.
   // Windows that cannot be snapped or are less wide than kMaxDockWidth can get