Use active window if on current workspace for fullscreen mode.

ash/wm/mru_window_tracker.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/wm/mru_window_tracker.h"
 
 #include <algorithm>
 
 #include "ash/session_state_delegate.h"
 #include "ash/shell.h"
@@ skipping 28 matching lines @@
   aura::Window* container = Shell::GetContainer(
       root, internal::kShellWindowId_DockedContainer);
   const MruWindowTracker::WindowList& children = container->children();
   for (MruWindowTracker::WindowList::const_iterator iter = children.begin();
        iter != children.end(); ++iter) {
     if (wm::GetWindowState(*iter)->is_dragged())
       windows->insert(windows->end(), *iter);
   }
 }
 
-// Returns true if |window| is a container whose windows can be cycled to.
-bool IsSwitchableContainer(aura::Window* window) {
-  if (!window)
-    return false;
-  for (size_t i = 0; i < kSwitchableWindowContainerIdsLength; ++i) {
-    if (window->id() == kSwitchableWindowContainerIds[i])
-      return true;
-  }
-  return false;
-}
-
 // Returns whether |w1| should be considered less recently used than |w2|. This
 // is used for a stable sort to move minimized windows to the LRU end of the
 // list.
 bool CompareWindowState(aura::Window* w1, aura::Window* w2) {
   return ash::wm::IsWindowMinimized(w1) && !ash::wm::IsWindowMinimized(w2);
 }
 
 // Returns a list of windows ordered by their stacking order.
 // If |mru_windows| is passed, these windows are moved to the front of the list.
 // If |top_most_at_end|, the list is returned in descending (bottom-most / least
@@ skipping 132 matching lines @@
 
 void MruWindowTracker::OnWindowDestroyed(aura::Window* window) {
   // It's possible for OnWindowActivated() to be called after
   // OnWindowDestroying(). This means we need to override OnWindowDestroyed()
   // else we may end up with a deleted window in |mru_windows_|.
   mru_windows_.remove(window);
   window->RemoveObserver(this);
 }
 
 }  // namespace ash