Re-implement the screensaver to use WebView instead of ExtensionDialogHost.

chrome/browser/ui/views/menu_model_adapter_test.cc

Index: chrome/browser/ui/views/menu_model_adapter_test.cc
diff --git a/chrome/browser/ui/views/menu_model_adapter_test.cc b/chrome/browser/ui/views/menu_model_adapter_test.cc
index 740ec42336df69041b06f152a5180707ed5e0ca9..98a6683829f9a9b1d57b0bc1ba43748ebf3a6791 100644
--- a/chrome/browser/ui/views/menu_model_adapter_test.cc
+++ b/chrome/browser/ui/views/menu_model_adapter_test.cc
@@ -95,6 +95,12 @@ class TestViewsDelegate : public views::ViewsDelegate {
   }
 #endif
 
+  content::WebContents* CreateWebContents(
+      content::BrowserContext* browser_context,
+      content::SiteInstance* site_instance) OVERRIDE {
+    return NULL;
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(TestViewsDelegate);
 };