Re-enable BrowserViewTest.FullScreenClearsFocus on non-Windows platforms

chrome/browser/ui/views/frame/browser_view_browsertest.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 "chrome/browser/ui/views/frame/browser_view.h"
 
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "ui/views/focus/focus_manager.h"
 #include "ui/views/view.h"
 
 using views::FocusManager;
 using views::View;
 
 typedef InProcessBrowserTest BrowserViewTest;
 
-IN_PROC_BROWSER_TEST_F(BrowserViewTest, DISABLED_FullscreenClearsFocus) {
+// Active window and focus testing is not reliable on Windows crbug.com/79493
+#if defined(OS_WIN)
+#define MAYBE_FullscreenClearsFocus DISABLED_FullscreenClearsFocus
+#else
+#define MAYBE_FullscreenClearsFocus FullscreenClearsFocus
+#endif
+IN_PROC_BROWSER_TEST_F(BrowserViewTest, MAYBE_FullscreenClearsFocus) {
   BrowserView* browser_view = static_cast<BrowserView*>(browser()->window());
   LocationBarView* location_bar_view = browser_view->GetLocationBarView();
   FocusManager* focus_manager = browser_view->GetFocusManager();
 
   // Focus starts in the location bar or one of its children.
   EXPECT_TRUE(location_bar_view->Contains(focus_manager->GetFocusedView()));
 
   chrome::ToggleFullscreenMode(browser());
   EXPECT_TRUE(browser_view->IsFullscreen());
 
   // Focus is released from the location bar.
   EXPECT_FALSE(location_bar_view->Contains(focus_manager->GetFocusedView()));
 }