Begin to enable extension APIs in Extension Service Worker.

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 6dddcb332f7e68798176a47d75dfb2a7c68d773b..1676d1bbac9eec4ce1ecac633a848efe50e10975 100644
--- a/chrome/browser/extensions/service_worker_apitest.cc
+++ b/chrome/browser/extensions/service_worker_apitest.cc
@@ -604,6 +604,29 @@ IN_PROC_BROWSER_TEST_F(ServiceWorkerTest, WebAccessibleResourcesFetch) {
       "service_worker/web_accessible_resources/fetch/", "page.html"));
 }
 
+IN_PROC_BROWSER_TEST_F(ServiceWorkerTest, TabsCreate) {
+  // Extensions APIs from SW are only enabled on trunk.
+  ScopedCurrentChannel current_channel_override(version_info::Channel::UNKNOWN);
+  const Extension* extension = LoadExtensionWithFlags(
+      test_data_dir_.AppendASCII("service_worker/tabs_create"), kFlagNone);
+  ASSERT_TRUE(extension);
+  ui_test_utils::NavigateToURL(browser(),
+                               extension->GetResourceURL("page.html"));
+  content::WebContents* web_contents =
+      browser()->tab_strip_model()->GetActiveWebContents();
+
+  int starting_tab_count = browser()->tab_strip_model()->count();
+  std::string result;
+  ASSERT_TRUE(content::ExecuteScriptAndExtractString(
+      web_contents, "window.runServiceWorker()", &result));
+  ASSERT_EQ("chrome.tabs.create callback", result);
+  EXPECT_EQ(starting_tab_count + 1, browser()->tab_strip_model()->count());
+
+  // Check extension shutdown path.
+  UnloadExtension(extension->id());
+  EXPECT_EQ(starting_tab_count, browser()->tab_strip_model()->count());
+}
+
 // This test loads a web page that has an iframe pointing to a
 // chrome-extension:// URL. The URL is listed in the extension's
 // web_accessible_resources. Initially the iframe is served from the extension's