Disable ArcAppModelBuilderTest.RequestShortcutIcons on ChromeOS

chrome/browser/ui/app_list/arc/arc_app_unittest.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 <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <map>
 #include <string>
@@ skipping 644 matching lines @@
   // Validate that we have a request for each icon for each supported scale
   // factor.
   EXPECT_EQ(fake_apps().size(), app_masks.size());
   for (auto& app : fake_apps()) {
     const std::string id = ArcAppTest::GetAppId(app);
     ASSERT_NE(app_masks.find(id), app_masks.end());
     EXPECT_EQ(app_masks[id], expected_mask);
   }
 }
 
-TEST_F(ArcAppModelBuilderTest, RequestShortcutIcons) {
+// TODO(crbug.com/624446) - reenable once this test is fixed
+TEST_F(ArcAppModelBuilderTest, DISABLED_RequestShortcutIcons) {
   // Make sure we are on UI thread.
   ASSERT_TRUE(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 
   bridge_service()->SetReady();
   const arc::mojom::ShortcutInfo& shortcut = fake_shortcuts()[0];
   app_instance()->SendInstallShortcut(shortcut);
 
   ArcAppListPrefs* prefs = ArcAppListPrefs::Get(profile_.get());
   ASSERT_NE(nullptr, prefs);
 
@@ skipping 265 matching lines @@
   EXPECT_FALSE(prefs->HasObserver(&launcher1));
   EXPECT_TRUE(prefs->HasObserver(&launcher3));
 
   ArcAppLauncher launcher2(profile(), id2, true);
   EXPECT_TRUE(launcher2.app_launched());
   app_instance()->WaitForIncomingMethodCall();
   EXPECT_FALSE(prefs->HasObserver(&launcher2));
   ASSERT_EQ(2u, app_instance()->launch_requests().size());
   EXPECT_TRUE(app_instance()->launch_requests()[1]->IsForApp(app2));
 }