Disable flaky MouseLeaveTest.ContextMenu on Windows.

chrome/browser/mouseleave_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 "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
 #include "chrome/browser/renderer_context_menu/render_view_context_menu_browsertest_util.h"
@@ skipping 89 matching lines @@
 IN_PROC_BROWSER_TEST_F(MouseLeaveTest, MouseDownOnBrowserCaption) {
   gfx::Rect browser_bounds = browser()->window()->GetBounds();
   ui_controls::SendMouseMove(browser_bounds.x() + 200,
                              browser_bounds.y() + 10);
   ui_controls::SendMouseClick(ui_controls::LEFT);
 
   MouseLeaveTestCommon();
 }
 #endif
 
-#if defined(OS_MACOSX)
+#if defined(OS_MACOSX) || defined(OS_WIN)
 // Test that a mouseleave is not triggered when showing the context menu.
 // If the test is failed, it means that Blink gets the mouseleave event
 // when showing the context menu and it could make the unexpecting
 // content behavior such as clearing the hover status.
 // Please refer to the below issue for understanding what happens .
 // TODO: Make test pass on OS_WIN and OS_MACOSX
-// OS_WIN: http://crbug.com/450138
+// OS_WIN: Flaky. See http://crbug.com/656101.
 // OS_MACOSX: Missing automation provider support: http://crbug.com/45892.
 #define MAYBE_ContextMenu DISABLED_ContextMenu
 #else
 #define MAYBE_ContextMenu ContextMenu
 #endif
 
 IN_PROC_BROWSER_TEST_F(MouseLeaveTest, MAYBE_ContextMenu) {
   content::WebContents* tab =
       browser()->tab_strip_model()->GetActiveWebContents();
 
@@ skipping 37 matching lines @@
 
   tab->GetMainFrame()->ExecuteJavaScriptForTests(base::ASCIIToUTF16("done()"));
   const base::string16 success_title = base::ASCIIToUTF16("without mouseleave");
   const base::string16 failure_title = base::ASCIIToUTF16("with mouseleave");
   content::TitleWatcher done_title_watcher(tab, success_title);
   done_title_watcher.AlsoWaitForTitle(failure_title);
   EXPECT_EQ(success_title, done_title_watcher.WaitAndGetTitle());
 }
 
 }  // namespace