Allow fling gesture while dragging from AllApps to dismiss drag.

Change-Id: I5eea14336579a1374aded63dda9ad1a33e8b8d4a
diff --git a/src/com/android/launcher2/Folder.java b/src/com/android/launcher2/Folder.java
index 6856a09..c502fb7 100644
--- a/src/com/android/launcher2/Folder.java
+++ b/src/com/android/launcher2/Folder.java
@@ -44,6 +44,7 @@
 import android.widget.TextView;
 
 import com.android.launcher.R;
+import com.android.launcher2.DropTarget.DragObject;
 import com.android.launcher2.FolderInfo.FolderListener;
 
 import java.util.ArrayList;
@@ -619,7 +620,8 @@
         mReorderAlarm.cancelAlarm();
     }
 
-    public void onDropCompleted(View target, DragObject d, boolean success) {
+    public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete,
+            boolean success) {
         if (success) {
             if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon) {
                 replaceFolderWithFinalItem();
@@ -653,10 +655,20 @@
         updateItemLocationsInDatabase();
     }
 
+    @Override
     public boolean supportsFlingToDelete() {
         return true;
     }
 
+    public void onFlingToDelete(DragObject d, int x, int y, PointF vec) {
+        // Do nothing
+    }
+
+    @Override
+    public void onFlingToDeleteCompleted() {
+        // Do nothing
+    }
+
     private void updateItemLocationsInDatabase() {
         ArrayList<View> list = getItemsInReadingOrder();
         for (int i = 0; i < list.size(); i++) {
@@ -928,10 +940,6 @@
         mInfo.add(item);
     }
 
-    public void onFlingToDelete(DragObject d, int x, int y, PointF vec) {
-        // Do nothing
-    }
-
     public void onAdd(ShortcutInfo item) {
         mItemsInvalidated = true;
         // If the item was dropped onto this open folder, we have done the work associated