Fixes bug where FocusController would stack a layer directly above a

ui/aura/test/test_window_delegate.cc

Index: ui/aura/test/test_window_delegate.cc
diff --git a/ui/aura/test/test_window_delegate.cc b/ui/aura/test/test_window_delegate.cc
index f75d8274ac8500b35d51d75ee7e7c5dc783d3df0..cba700c269fd67f94905bdbac5b90bc7bbbe14f5 100644
--- a/ui/aura/test/test_window_delegate.cc
+++ b/ui/aura/test/test_window_delegate.cc
@@ -20,7 +20,8 @@ namespace test {
 
 TestWindowDelegate::TestWindowDelegate()
     : window_component_(HTCLIENT),
-      delete_on_destroyed_(false) {
+      delete_on_destroyed_(false),
+      can_focus_(true) {
 }
 
 TestWindowDelegate::~TestWindowDelegate() {
@@ -60,7 +61,7 @@ bool TestWindowDelegate::ShouldDescendIntoChildForEventHandling(
 }
 
 bool TestWindowDelegate::CanFocus() {
-  return true;
+  return can_focus_;
 }
 
 void TestWindowDelegate::OnCaptureLost() {