Folders now close in various situations where we want them to:

-> When pressing home, from app or from home
-> When rotating (as per design request)
-> When scrolling to another page

Change-Id: I3b96b216f1ec5da07cd95d2541999866a1c1424e

src/com/android/launcher2/Workspace.java

@@ -3025,6 +3025,10 @@ public class Workspace extends SmoothPagedView
         if (!mIsSmall && !mIsInUnshrinkAnimation) {
             super.scrollLeft();
         }
+        Folder openFolder = getOpenFolder();
+        if (openFolder != null) {
+            openFolder.completeDragExit();
+        }
     }
 
     @Override
@@ -3032,6 +3036,10 @@ public class Workspace extends SmoothPagedView
         if (!mIsSmall && !mIsInUnshrinkAnimation) {
             super.scrollRight();
         }
+        Folder openFolder = getOpenFolder();
+        if (openFolder != null) {
+            openFolder.completeDragExit();
+        }
     }
 
     @Override