Moving the state changes during drag-n-drop from startDrag to onDragStart

This will allow drag controller to optinally defer drag, based on some
threshold, by simply deferring the callback onDragStart

Change-Id: I17c06a15e2092b9797c7e57529b12a53d2acae6e
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 886c5f0..334db4a 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -2809,7 +2809,7 @@
         mDragLayer.onAccessibilityStateChanged(enabled);
     }
 
-    public void onDragStarted(View view) {
+    public void onDragStarted() {
         if (isOnCustomContent()) {
             // Custom content screen doesn't participate in drag and drop. If on custom
             // content screen, move to default.