Delete test view delegate at end of test

views/controls/textfield/textfield_views_model_unittest.cc

Index: views/controls/textfield/textfield_views_model_unittest.cc
diff --git a/views/controls/textfield/textfield_views_model_unittest.cc b/views/controls/textfield/textfield_views_model_unittest.cc
index 388c8c3953fb7e8bd6448f72036c251013c2af26..1ef17239a0d27f59ac34842c668bebc540ef1212 100644
--- a/views/controls/textfield/textfield_views_model_unittest.cc
+++ b/views/controls/textfield/textfield_views_model_unittest.cc
@@ -289,7 +289,10 @@ TEST(TextfieldViewsModelTest, SetText) {
 }
 
 TEST(TextfieldViewsModelTest, Clipboard) {
-  views::ViewsDelegate::views_delegate = new TestViewsDelegate();
+  scoped_ptr<TestViewsDelegate> test_views_delegate(new TestViewsDelegate());
+  views::ViewsDelegate* original_delegate =
+      views::ViewsDelegate::views_delegate;
+  views::ViewsDelegate::views_delegate = test_views_delegate.get();
   ui::Clipboard* clipboard
       = views::ViewsDelegate::views_delegate->GetClipboard();
   string16 initial_clipboard_text;
@@ -339,6 +342,9 @@ TEST(TextfieldViewsModelTest, Clipboard) {
   EXPECT_STR_EQ("HELLO HELLO WORLD", clipboard_text);
   EXPECT_STR_EQ("HELLO HELLO HELLO HELLO WORLD", model.text());
   EXPECT_EQ(29U, model.cursor_pos());
+
+  // Restore original delegate.
+  views::ViewsDelegate::views_delegate = original_delegate;
 }
 
 }  // namespace views