[Refactor] Move the logic to update bounds for show type from WorkspaceLayoutManager to DefaultState

ash/wm/default_state.h

Index: ash/wm/default_state.h
diff --git a/ash/wm/default_state.h b/ash/wm/default_state.h
index 72e1f74fb71bce2b7434fce9b86b196111e0b4bb..c362ede0a10c1b4d1b776d7ec704ac3c5e835880 100644
--- a/ash/wm/default_state.h
+++ b/ash/wm/default_state.h
@@ -17,9 +17,17 @@ class DefaultState : public WindowState::State {
   virtual ~DefaultState();
 
   // WindowState::State overrides:
-  virtual void OnWMEvent(WindowState* window_state,
-                         WMEvent event) OVERRIDE;
+  virtual void OnWMEvent(WindowState* window_state, WMEvent event) OVERRIDE;
+
  private:
+  // Process a stete dependent events, such as TOGGLE_MAXIMZIED,
+  // TOGGLE_FULLSCREEN.
+  static bool ProcessCompoundEvents(WindowState* window_state, WMEvent event);
+
+  // Update the window bounds according to the current and previous show type.
+  static void UpdateBoundsFromShowType(wm::WindowState* window_state,
+                                       wm::WindowShowType old_show_type);
+
   DISALLOW_COPY_AND_ASSIGN(DefaultState);
 };