Deflake CustomLauncherPageBrowserTest.EventsActivateSwitchToCustomPage on ChromeOS Buildspec Tests

chrome/browser/apps/custom_launcher_page_browsertest_views.cc

 // Copyright 2014 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 <string>
 
 #include "ash/shell.h"
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
@@ skipping 136 matching lines @@
   }
 }
 
 // Test that the app list will switch to the custom launcher page by sending a
 // click inside the clickzone, or a mouse scroll event.
 IN_PROC_BROWSER_TEST_F(CustomLauncherPageBrowserTest,
                        EventsActivateSwitchToCustomPage) {
   LoadAndLaunchPlatformApp(kCustomLauncherPagePath, "Launched");
   // Use an event generator to ensure targeting is correct.
   app_list::AppListView* app_list_view = GetAppListView();
+
+  // On ChromeOS, displaying the app list can be delayed while icons finish
+  // loading. Explicitly show it to ensure the event generator gets meaningful
+  // coordinates. See http://crbug.com/525128.
+  app_list_view->GetWidget()->Show();
+
   app_list::ContentsView* contents_view =
       app_list_view->app_list_main_view()->contents_view();
   gfx::NativeWindow window = app_list_view->GetWidget()->GetNativeWindow();
   ui::test::EventGenerator event_generator(window->GetRootWindow(), window);
   EXPECT_TRUE(
       contents_view->IsStateActive(app_list::AppListModel::STATE_START));
 
   // Find the clickzone.
   gfx::Rect bounds =
       contents_view->custom_page_view()->GetCollapsedLauncherPageBounds();
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   // And in reverse.
   EXPECT_EQ(
       search_box_textfield,
       app_list_view->GetFocusManager()->GetNextFocusableView(
           custom_page_webview, custom_page_webview->GetWidget(), true, false));
   EXPECT_EQ(custom_page_webview,
             app_list_view->GetFocusManager()->GetNextFocusableView(
                 search_box_textfield, search_box_textfield->GetWidget(), true,
                 false));
 }