Reenables MruWindowTrackerTest.MinimizedWindowsAreLru in mash

ash/common/wm/mru_window_tracker_unittest.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 "ash/common/wm/mru_window_tracker.h"
 
 #include "ash/common/test/ash_test.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
@@ skipping 33 matching lines @@
 
   WmWindow::Windows window_list = mru_window_tracker()->BuildMruWindowList();
   ASSERT_EQ(3u, window_list.size());
   EXPECT_EQ(w1, window_list[0]);
   EXPECT_EQ(w2, window_list[1]);
   EXPECT_EQ(w3, window_list[2]);
 }
 
 // Test that minimized windows are not treated specially.
 TEST_F(MruWindowTrackerTest, MinimizedWindowsAreLru) {
-  // TODO(sky): fix me. Fails in mash because of http://crbug.com/654887.
-  if (WmShell::Get()->IsRunningInMash())
-    return;
-
   std::unique_ptr<WindowOwner> w1_owner(CreateTestWindow());
   WmWindow* w1 = w1_owner->window();
   std::unique_ptr<WindowOwner> w2_owner(CreateTestWindow());
   WmWindow* w2 = w2_owner->window();
   std::unique_ptr<WindowOwner> w3_owner(CreateTestWindow());
   WmWindow* w3 = w3_owner->window();
   std::unique_ptr<WindowOwner> w4_owner(CreateTestWindow());
   WmWindow* w4 = w4_owner->window();
   std::unique_ptr<WindowOwner> w5_owner(CreateTestWindow());
   WmWindow* w5 = w5_owner->window();
@@ skipping 39 matching lines @@
   drag_container->AddChild(w1);
   EXPECT_TRUE(w1->GetWindowState()->is_dragged());
 
   // The dragged window should only be in the list once.
   WmWindow::Windows window_list =
       mru_window_tracker()->BuildWindowListIgnoreModal();
   EXPECT_EQ(1, std::count(window_list.begin(), window_list.end(), w1));
 }
 
 }  // namespace ash