Try re-enabling WindowDotPrintShouldBringUpPrintPreview

chrome/browser/apps/app_browsertest.cc

 // Copyright 2013 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 <memory>
 
 #include "apps/launcher.h"
 #include "base/auto_reset.h"
@@ skipping 1113 matching lines @@
 
   EXPECT_EQ(1LU, GetAppWindowCount());
   EXPECT_TRUE(GetFirstAppWindow()
                   ->web_contents()
                   ->GetRenderWidgetHostView()
                   ->HasFocus());
 }
 
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW)
 
-// Disabled due to flakiness. See crbug.com/693305.
-// TODO(rbpotter): Investigate and re-enable this test.
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest,
-                       DISABLED_WindowDotPrintShouldBringUpPrintPreview) {
+                       WindowDotPrintShouldBringUpPrintPreview) {
   ScopedPreviewTestingDelegate preview_delegate;
   ASSERT_TRUE(RunPlatformAppTest("platform_apps/print_api")) << message_;
   preview_delegate.WaitUntilPreviewIsReady();
 }
 
 // This test verifies that http://crbug.com/297179 is fixed.
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest,
                        DISABLED_ClosingWindowWhilePrintingShouldNotCrash) {
   ScopedPreviewTestingDelegate preview_delegate;
   ASSERT_TRUE(RunPlatformAppTest("platform_apps/print_api")) << message_;
@@ skipping 215 matching lines @@
 }
 
 // Sends chrome.test.sendMessage from chrome.app.window.create's callback.
 // The app window also adds an <iframe> to the page during window.onload.
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, AppWindowIframe) {
   LoadAndLaunchPlatformApp("app_window_send_message",
                            "APP_WINDOW_CREATE_CALLBACK");
 }
 
 }  // namespace extensions