Separated alt-tab window cycle from overview mode

ash/wm/overview/window_selector_controller.cc

Index: ash/wm/overview/window_selector_controller.cc
diff --git a/ash/wm/overview/window_selector_controller.cc b/ash/wm/overview/window_selector_controller.cc
index 4553cf33177536b70ed0273139b5d70b01130eef..959dd343a85e3de0ca576ba9dfeb3f0aa9cf9010 100644
--- a/ash/wm/overview/window_selector_controller.cc
+++ b/ash/wm/overview/window_selector_controller.cc
@@ -51,30 +51,11 @@ void WindowSelectorController::ToggleOverview() {
       return;
 
     window_selector_.reset(
-        new WindowSelector(windows, WindowSelector::OVERVIEW, this));
+        new WindowSelector(windows, this));
     OnSelectionStarted();
   }
 }
 
-void WindowSelectorController::HandleCycleWindow(
-    WindowSelector::Direction direction) {
-  if (!CanSelect())
-    return;
-
-  if (!IsSelecting()) {
-    std::vector<aura::Window*> windows = ash::Shell::GetInstance()->
-        mru_window_tracker()->BuildMruWindowList();
-    // Don't cycle with no windows.
-    if (windows.empty())
-      return;
-
-    window_selector_.reset(
-        new WindowSelector(windows, WindowSelector::CYCLE, this));
-    OnSelectionStarted();
-  }
-  window_selector_->Step(direction);
-}
-
 bool WindowSelectorController::IsSelecting() {
   return window_selector_.get() != NULL;
 }