Call OnNativeWindowChanged after maximizing and restoring.

ui/views/widget/native_widget_aura.cc

Index: ui/views/widget/native_widget_aura.cc
diff --git a/ui/views/widget/native_widget_aura.cc b/ui/views/widget/native_widget_aura.cc
index e57a4ff0bc0ecb56c12fba415058f0d60a13b85f..b733b4f72182ba8c0aaae21eac29073578c799f9 100644
--- a/ui/views/widget/native_widget_aura.cc
+++ b/ui/views/widget/native_widget_aura.cc
@@ -82,6 +82,7 @@ NativeWidgetAura::NativeWidgetAura(internal::NativeWidgetDelegate* delegate)
       saved_window_state_(ui::SHOW_STATE_DEFAULT) {
   aura::client::SetFocusChangeObserver(window_, this);
   aura::client::SetActivationChangeObserver(window_, this);
+  window_->AddObserver(this);

[sky, 2014/08/11 16:09:19]

nit: move to init.

[jackhou1, 2014/08/12 05:23:44]

Done.

 }
 
 // static
@@ -798,6 +799,7 @@ void NativeWidgetAura::OnDeviceScaleFactorChanged(float device_scale_factor) {
 }
 
 void NativeWidgetAura::OnWindowDestroying(aura::Window* window) {
+  window_->RemoveObserver(this);
   delegate_->OnNativeWidgetDestroying();
 
   // If the aura::Window is destroyed, we can no longer show tooltips.
@@ -825,6 +827,16 @@ void NativeWidgetAura::GetHitTestMask(gfx::Path* mask) const {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// NativeWidgetAura, aura::WindowObserver implementation:
+
+void NativeWidgetAura::OnWindowPropertyChanged(aura::Window* window,
+                                               const void* key,
+                                               intptr_t old) {
+  if (key == aura::client::kShowStateKey)
+    delegate_->OnNativeWidgetWindowShowStateChanged();
+}
+
+////////////////////////////////////////////////////////////////////////////////
 // NativeWidgetAura, ui::EventHandler implementation:
 
 void NativeWidgetAura::OnKeyEvent(ui::KeyEvent* event) {