Update custom content insets when Workspace insets are set

-> Not sure if custom content can be added before insets are set,
   so this is just a speculative fix.

Bug: 11875171
Change-Id: Ia8e07f51f527f464262b7ff99e4db245fe5a7906
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 02949e7..b8af9ad 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -334,6 +334,14 @@
     @Override
     public void setInsets(Rect insets) {
         mInsets.set(insets);
+
+        CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID);
+        if (customScreen != null) {
+            View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0);
+            if (customContent instanceof Insettable) {
+                ((Insettable) customContent).setInsets(mInsets);
+            }
+        }
     }
 
     // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each