Add a test to cover service worker update codepath when extension is updated

chrome/browser/extensions/service_worker_apitest.cc

Index: chrome/browser/extensions/service_worker_apitest.cc
diff --git a/chrome/browser/extensions/service_worker_apitest.cc b/chrome/browser/extensions/service_worker_apitest.cc
index 29fad8fa5aa7285fc66d58454b3be8d38db67766..aa9d25f7ecf8617597a9ae8b1a359c666d8b6a7f 100644
--- a/chrome/browser/extensions/service_worker_apitest.cc
+++ b/chrome/browser/extensions/service_worker_apitest.cc
@@ -132,6 +132,41 @@ IN_PROC_BROWSER_TEST_F(ServiceWorkerTest, RegisterFailsOnDev) {
       error);
 }
 
+IN_PROC_BROWSER_TEST_F(ServiceWorkerTest, UpdateRefreshesServiceWorker) {
+  base::ScopedTempDir scoped_temp_dir;
+  ASSERT_TRUE(scoped_temp_dir.CreateUniqueTempDir());
+  base::FilePath pem_path = test_data_dir_. AppendASCII("service_worker")
+      .AppendASCII("update").AppendASCII("service_worker.pem");
+  base::FilePath path_v1 = PackExtensionWithOptions(
+      test_data_dir_.AppendASCII("service_worker").AppendASCII("update")
+                    .AppendASCII("v1"),
+      scoped_temp_dir.path().AppendASCII("v1.crx"),
+      pem_path, base::FilePath());
+  base::FilePath path_v2 = PackExtensionWithOptions(
+      test_data_dir_.AppendASCII("service_worker").AppendASCII("update")
+                    .AppendASCII("v2"),
+      scoped_temp_dir.path().AppendASCII("v2.crx"),
+      pem_path, base::FilePath());
+
+  ExtensionService* service = ExtensionSystem::Get(browser()->profile())->
+      extension_service();
+  const char kId[] = "hfaanndiiilofhfokeanhddpkfffchdi";
+
+  // Install version 1.0 of the extension.
+  ASSERT_TRUE(InstallExtension(path_v1, 1));
+  EXPECT_TRUE(service->GetExtensionById(kId, false) != NULL);
+
+  const char* kScript = "window.testResolver();";
+  EXPECT_EQ("true", ExecuteScriptInBackgroundPage(kId, kScript));
+
+  // Update to version 2.0.
+  EXPECT_TRUE(UpdateExtension(kId, path_v2, 0));
+  EXPECT_TRUE(service->GetExtensionById(kId, false) != NULL);
+
+  EXPECT_EQ("true", ExecuteScriptInBackgroundPage(kId, kScript));
+}
+
+
 IN_PROC_BROWSER_TEST_F(ServiceWorkerTest, FetchArbitraryPaths) {
   const Extension* extension =
       StartTestFromBackgroundPage("fetch.js", kExpectSuccess);