Makes content handlers see requestor url

mojo/runner/native_runner_unittest.cc

Index: mojo/runner/native_runner_unittest.cc
diff --git a/mojo/runner/native_runner_unittest.cc b/mojo/runner/native_runner_unittest.cc
index 2efb75e5d321ab5ff96bdd22c98c56f01761d030..01ec60e9f827704a5871d67e3607395b04d41fdb 100644
--- a/mojo/runner/native_runner_unittest.cc
+++ b/mojo/runner/native_runner_unittest.cc
@@ -80,6 +80,11 @@ class NativeApplicationLoaderTest : public testing::Test,
   // shell::ApplicationManager::Delegate
   GURL ResolveMappings(const GURL& url) override { return url; }
   GURL ResolveMojoURL(const GURL& url) override { return url; }
+  bool CreateFetcher(
+      const GURL& url,
+      const shell::Fetcher::FetchCallback& loader_callback) override {
+    return false;
+  }
 };
 
 TEST_F(NativeApplicationLoaderTest, DoesNotExist) {