mash: Remove ShelfDelegate; move functions to ShelfModel.

chrome/test/base/browser_with_test_window_test.h

Index: chrome/test/base/browser_with_test_window_test.h
diff --git a/chrome/test/base/browser_with_test_window_test.h b/chrome/test/base/browser_with_test_window_test.h
index 29177899148a4ac90d8d70358888f34a2f4ae25c..40a3624e328ea6111cf415acb1d021bd05b17e69 100644
--- a/chrome/test/base/browser_with_test_window_test.h
+++ b/chrome/test/base/browser_with_test_window_test.h
@@ -107,6 +107,10 @@ class BrowserWithTestWindowTest : public testing::Test {
     return window_.release();
   }
 
+#if defined(OS_CHROMEOS)
+  ash::test::AshTestHelper* ash_test_helper() { return ash_test_helper_.get(); }
+#endif
+
   // The context to help determine desktop type when creating new Widgets.
   gfx::NativeWindow GetContext();