Allow javascript change the virtual keyboard window size and position freely in FLOATING mode

ash/wm/lock_layout_manager_unittest.cc

Index: ash/wm/lock_layout_manager_unittest.cc
diff --git a/ash/wm/lock_layout_manager_unittest.cc b/ash/wm/lock_layout_manager_unittest.cc
index fc097fb303cd6181a44f1c5df2ee5575147bf35d..17b1bf7b180c80508e5a537ff8c1db5a6e096ca0 100644
--- a/ash/wm/lock_layout_manager_unittest.cc
+++ b/ash/wm/lock_layout_manager_unittest.cc
@@ -94,7 +94,7 @@ class LockLayoutManagerTest : public AshTestBase {
       if (keyboard->proxy()->GetKeyboardWindow()->bounds().height() == 0) {
         keyboard->proxy()->GetKeyboardWindow()->SetBounds(
             keyboard::KeyboardBoundsFromWindowBounds(
-                keyboard->GetContainerWindow()->bounds(),
+                Shell::GetPrimaryRootWindow()->bounds(),
                 kVirtualKeyboardHeight));
       }
     } else {