[Mac] Enable click-drag-release behavior in the Wrench menu's custom items.

chrome/browser/cocoa/menu_tracked_root_view_unittest.mm

+// Copyright (c) 2010 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.
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/scoped_nsobject.h"
+#import "chrome/browser/cocoa/cocoa_test_helper.h"
+#import "chrome/browser/cocoa/menu_tracked_root_view.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+#import "third_party/ocmock/OCMock/OCMock.h"
+
+class MenuTrackedRootViewTest : public CocoaTest {
+ public:
+  void SetUp() {
+    CocoaTest::SetUp();
+    view_.reset([[MenuTrackedRootView alloc] init]);
+  }
+
+  scoped_nsobject<MenuTrackedRootView> view_;
+};
+
+TEST_F(MenuTrackedRootViewTest, MouseUp) {
+  id menu = [OCMockObject mockForClass:[NSMenu class]];
+  [[menu expect] cancelTracking];
+
+  id menuItem = [OCMockObject mockForClass:[NSMenuItem class]];
+  [[[menuItem stub] andReturn:menu] menu];
+
+  [view_ setMenuItem:menuItem];
+  NSEvent* event = [NSEvent mouseEventWithType:NSLeftMouseUp
+                                      location:NSMakePoint(42, 42)
+                                 modifierFlags:0
+                                     timestamp:0
+                                  windowNumber:[test_window() windowNumber]
+                                       context:nil
+                                   eventNumber:1
+                                    clickCount:1
+                                      pressure:1.0];
+  [view_ mouseUp:event];
+
+  [menu verify];
+  [menuItem verify];
+}