Eliminate network fallback from ServiceWorkerContextRequestHandler.

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/import-scripts-worker.js

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/import-scripts-worker.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/import-scripts-worker.js b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/import-scripts-worker.js
new file mode 100644
index 0000000000000000000000000000000000000000..c3c5fac92cd1364495cb67d6c10aa8cab3128053
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/import-scripts-worker.js
@@ -0,0 +1,26 @@
+importScripts('../../resources/testharness.js');
+
+let echo_output = null;
+
+// Tests importing a script that sets |echo_output| to the query string.
+function test_import(str) {
+  importScripts('echo.php?' + str);
+  assert_equals(echo_output, str);
+}
+
+test_import('root');
+test_import('root-and-message');
+
+self.addEventListener('install', () => {
+    test_import('install');
+    test_import('install-and-message');
+  });
+
+self.addEventListener('message', e => {
+    test_import('root-and-message');
+    test_import('install-and-message');
+    // TODO(falken): This should fail. The spec disallows importing a non-cached
+    // script like this but currently Chrome and Firefox allow it.
+    test_import('message');
+    e.source.postMessage('OK');
+  });