Add workspace to desktop

ui/aura/test/aura_test_base.h

Index: ui/aura/test/aura_test_base.h
diff --git a/ui/aura/test/aura_test_base.h b/ui/aura/test/aura_test_base.h
index 1d2551ac1922c94e9ea022a26a15e7b0b9810647..6f8c829a8394b1501324442eba81f00b4851cfa6 100644
--- a/ui/aura/test/aura_test_base.h
+++ b/ui/aura/test/aura_test_base.h
@@ -15,12 +15,16 @@
 namespace aura {
 namespace test {
 
+class TestDesktopDelegate;
+
 // A base class for aura unit tests.
 class AURA_EXPORT AuraTestBase : public testing::Test {
  public:
   AuraTestBase();
   virtual ~AuraTestBase();
 
+  TestDesktopDelegate* GetTestDesktopDelegate();
+
   // testing::Test:
   virtual void SetUp() OVERRIDE;
   virtual void TearDown() OVERRIDE;