Fix webview example in views examples.

ash/test/ash_test_base.h

Index: ash/test/ash_test_base.h
diff --git a/ash/test/ash_test_base.h b/ash/test/ash_test_base.h
index c118a8a05f9d9bd0c7992f7d3de7fd4bf0e1be47..2ca9246ecc1bc00dddb30ad2a46491e2d30e7f66 100644
--- a/ash/test/ash_test_base.h
+++ b/ash/test/ash_test_base.h
@@ -10,10 +10,19 @@
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/views/test/test_views_delegate.h"
 
 namespace ash {
 namespace test {
 
+class AshTestViewsDelegate : public views::TestViewsDelegate {
+ public:
+  // Overriden from TestViewsDelegate.
+  virtual content::WebContents* CreateWebContents(
+      content::BrowserContext* browser_context,
+      content::SiteInstance* site_instance) OVERRIDE;
+};
+
 class AshTestBase : public testing::Test {
  public:
   AshTestBase();