Simplify WorkAreaBounds access logic

ash/wm/shelf_layout_manager.cc

Index: ash/wm/shelf_layout_manager.cc
diff --git a/ash/wm/shelf_layout_manager.cc b/ash/wm/shelf_layout_manager.cc
index 46023ccb3abe65758c96947a0196fc13f4deaae8..c86272244790551774e5d1594e56d66b9e3cfd34 100644
--- a/ash/wm/shelf_layout_manager.cc
+++ b/ash/wm/shelf_layout_manager.cc
@@ -495,18 +495,7 @@ void ShelfLayoutManager::OnWindowActivated(aura::Window* active,
 
 ShelfLayoutManager::TargetBounds::TargetBounds() : opacity(0.0f) {}
 
-gfx::Rect ShelfLayoutManager::GetMaximizedWindowBounds(
-    aura::Window* window) {
-  gfx::Rect bounds(ScreenAsh::GetDisplayBoundsInParent(window));
-  if (auto_hide_behavior_ == SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS) {
-    AdjustBoundsBasedOnAlignment(kAutoHideSize, &bounds);
-    return bounds;
-  }
-  // SHELF_AUTO_HIDE_BEHAVIOR_NEVER maximized windows don't get any taller.
-  return GetUnmaximizedWorkAreaBounds(window);
-}
-
-gfx::Rect ShelfLayoutManager::GetUnmaximizedWorkAreaBounds(
+gfx::Rect ShelfLayoutManager::GetWorkAreaBounds(
     aura::Window* window) {
   gfx::Rect bounds(ScreenAsh::GetDisplayBoundsInParent(window));
   int size;