Re-enable SelectFileDialogExtensionBrowserTest/SelectFileAndCancel

Bug: 895703
Change-Id: I529f7a310c4323cc5a3d87a978e9cbcfe0049fe2
Reviewed-on: https://chromium-review.googlesource.com/c/1285491
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Trent Apted <tapted@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600287}

chrome/browser/ui/views/select_file_dialog_extension_browsertest.cc

@@ -266,14 +266,8 @@ IN_PROC_BROWSER_TEST_F(SelectFileDialogExtensionBrowserTest, DestroyListener) {
 // page element, as that uses different memory management pathways.
 // crbug.com/98791
 
-// Flaky on Chrome OS, see: http://crbug.com/477360
-#if defined(OS_CHROMEOS)
-#define MAYBE_SelectFileAndCancel DISABLED_SelectFileAndCancel
-#else
-#define MAYBE_SelectFileAndCancel SelectFileAndCancel
-#endif
 IN_PROC_BROWSER_TEST_F(SelectFileDialogExtensionBrowserTest,
-                       MAYBE_SelectFileAndCancel) {
+                       SelectFileAndCancel) {
   gfx::NativeWindow owning_window = browser()->window()->GetNativeWindow();
 
   // Open the file dialog on the default path.