Revert of Disable flaky ExperimentalAppWindowApiTest.SetIcon

extensions/browser/api/app_window/app_window_apitest.cc

 // Copyright (c) 2012 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 "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
@@ skipping 44 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TestAppWindowRegistryObserver);
 };
 
 }  // namespace
 
 using AppWindowApiTest = PlatformAppBrowserTest;
 using ExperimentalAppWindowApiTest = ExperimentalPlatformAppBrowserTest;
 
 // Tests chrome.app.window.setIcon.
-// Flaky test crbug.com/716726
-IN_PROC_BROWSER_TEST_F(ExperimentalAppWindowApiTest, DISABLED_SetIcon) {
+IN_PROC_BROWSER_TEST_F(ExperimentalAppWindowApiTest, SetIcon) {
   std::unique_ptr<TestAppWindowRegistryObserver> test_observer(
       new TestAppWindowRegistryObserver(browser()->profile()));
   ExtensionTestMessageListener listener("ready", true);
 
   // Launch the app and wait for it to be ready.
   LoadAndLaunchPlatformApp("windows_api_set_icon", &listener);
   EXPECT_EQ(0, test_observer->icon_updates());
   listener.Reply("");
 
   // Now wait until the WebContent has decoded the icon and chrome has
@@ skipping 139 matching lines @@
   command_line->AppendSwitchASCII(switches::kAppId,
                                   "jkghodnilhceideoidjikpgommlajknk");
 
   EXPECT_TRUE(RunComponentExtensionTest(
       "platform_apps/windows_api_ime/forced_app_mode_not_fullscreen"))
       << message_;
 }
 #endif  // OS_CHROMEOS
 
 }  // namespace extensions