Add support for opening multiple windows.

Installs an intermediate activity that manages tasks.

Bug: 20562850
Change-Id: If2d0a125b0630c27af07666b0f6a712f58243e9f
diff --git a/packages/DocumentsUI/src/com/android/documentsui/State.java b/packages/DocumentsUI/src/com/android/documentsui/State.java
index bbffad3..4306a0e 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/State.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/State.java
@@ -44,14 +44,14 @@
     public int derivedSortOrder = SORT_ORDER_DISPLAY_NAME;
 
     public boolean allowMultiple;
-    public boolean forceSize ;
+    public boolean forceSize;
     public boolean showSize;
-    public boolean localOnly ;
-    public boolean forceAdvanced ;
-    public boolean showAdvanced ;
-    public boolean stackTouched ;
-    public boolean restored ;
-    public boolean directoryCopy ;
+    public boolean localOnly;
+    public boolean forceAdvanced;
+    public boolean showAdvanced;
+    public boolean stackTouched;
+    public boolean restored;
+    public boolean directoryCopy;
     /** Transfer mode for file copy/move operations. */
     public int transferMode;