[Prerender] Ignores resources with unsupported schemes for Offline reqs

chrome/browser/prerender/prerender_browsertest.cc

Index: chrome/browser/prerender/prerender_browsertest.cc
diff --git a/chrome/browser/prerender/prerender_browsertest.cc b/chrome/browser/prerender/prerender_browsertest.cc
index 5de302c3ffc72c3e1fdb7e5558cd6900babaf808..03f33270100c2e82f58c37cf56cfe6c27dbf6e80 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -2823,6 +2823,39 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
   PrerenderTestURL(replacement_path, FINAL_STATUS_UNSUPPORTED_SCHEME, 0);
 }
 
+// Checks that non-http/https/chrome-extension subresource does not cancel the
+// prerender.
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
+                       PrerenderSubresourceUnsupportedSchemeForOffline) {
+  // Set up a page with unsupported subresource.
+  GURL image_url = GURL("invalidscheme://www.google.com/test.jpg");
+  base::StringPairs replacement_text;
+  replacement_text.push_back(
+      std::make_pair("REPLACE_WITH_IMAGE_URL", image_url.spec()));
+  std::string replacement_path;
+  net::test_server::GetFilePathWithReplacements(
+      "/prerender/prerender_with_image.html", replacement_text,
+      &replacement_path);
+  const GURL url = src_server()->GetURL(MakeAbsolute(replacement_path));
+
+  // Navigate to about:blank to get the session storage namespace.
+  ui_test_utils::NavigateToURL(current_browser(), GURL(url::kAboutBlankURL));
+  content::SessionStorageNamespace* storage_namespace =
+      GetActiveWebContents()
+          ->GetController()
+          .GetDefaultSessionStorageNamespace();
+
+  std::unique_ptr<TestPrerender> test_prerender =
+      prerender_contents_factory()->ExpectPrerenderContents(
+          FINAL_STATUS_APP_TERMINATING);
+
+  std::unique_ptr<PrerenderHandle> prerender_handle(
+      GetPrerenderManager()->AddPrerenderForOffline(url, storage_namespace,
+                                                    gfx::Size(640, 480)));
+  ASSERT_EQ(prerender_handle->contents(), test_prerender->contents());
+  test_prerender->WaitForLoads(1);
+}
+
 // Ensure that about:blank is permitted for any subresource.
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
                        PrerenderAllowAboutBlankSubresource) {