[extension SW]: Support event listener registration and event dispatching.

chrome/browser/extensions/service_worker_apitest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 
 #include "base/bind_helpers.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 648 matching lines @@
   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());
 }
 
+IN_PROC_BROWSER_TEST_F(ServiceWorkerTest, Events) {
+  // 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/events"), kFlagNone);
+  ASSERT_TRUE(extension);
+  ui_test_utils::NavigateToURL(browser(),
+                               extension->GetResourceURL("page.html"));
+  content::WebContents* web_contents =
+      browser()->tab_strip_model()->GetActiveWebContents();
+  std::string result;
+  ASSERT_TRUE(content::ExecuteScriptAndExtractString(
+      web_contents, "window.runEventTest()", &result));
+  ASSERT_EQ("chrome.tabs.onUpdated callback", result);
+}
+
 // Tests that worker ref count increments while extension API function is
 // active.
 
 // Flaky on Linux and ChromeOS, https://crbug.com/702126
 #if defined(OS_LINUX)
 #define MAYBE_WorkerRefCount DISABLED_WorkerRefCount
 #else
 #define MAYBE_WorkerRefCount WorkerRefCount
 #endif
 IN_PROC_BROWSER_TEST_F(ServiceWorkerTest, MAYBE_WorkerRefCount) {
@@ skipping 203 matching lines @@
   message.sender_id = "1234567890";
   message.raw_data = "testdata";
   message.decrypted = true;
   push_service()->SetMessageCallbackForTesting(run_loop.QuitClosure());
   push_service()->OnMessage(app_identifier.app_id(), message);
   EXPECT_TRUE(push_message_listener.WaitUntilSatisfied());
   run_loop.Run();  // Wait until the message is handled by push service.
 }
 
 }  // namespace extensions