Giving proper workspace description when the launcher is not loaded.

Bug: 27326504
Change-Id: Ifc30221f756d75064a4baf5f3bfc71b8f590b4b1

Conflicts:
	src/com/android/launcher3/Workspace.java
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 86c25b7..bf33ccf 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -4476,7 +4476,11 @@
             }
             nScreens--;
         }
-        return String.format(getContext().getString(R.string.workspace_scroll_format),
+        if (nScreens == 0) {
+            // When the workspace is not loaded, we do not know how many screen will be bound.
+            return getContext().getString(R.string.all_apps_home_button_label);
+        }
+        return getContext().getString(R.string.workspace_scroll_format,
                 page + 1 - delta, nScreens);
 
     }