Added restore functionality for maximize full/left/right

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 96c9e58c484289d94d6acfa8a7b71047a3caa11c..331dabf0a685175b205819f48c5e2ce712f11cf4 100644
--- a/ui/views/widget/native_widget_aura.cc
+++ b/ui/views/widget/native_widget_aura.cc
@@ -585,7 +585,18 @@ bool NativeWidgetAura::IsMinimized() const {
 }
 
 void NativeWidgetAura::Restore() {
-  window_->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_NORMAL);
+  gfx::Rect* restore_bounds =
+        window_->GetProperty(aura::client::kRestoreBoundsKey);
+  // If the windows state is already normal, but there is a restore bounds
+  // stored, we might are on Left/Right maximize mode and only need to restore
+  if (restore_bounds && !IsMinimized() && !IsMaximized() && !IsFullscreen()) {
+    // Since there is a restore bound, but no extreme state set, this has to be
+    // a L/R maximized mode restore.
+    SetBounds(*restore_bounds);
+    window_->ClearProperty(aura::client::kRestoreBoundsKey);
+  } else {
+    window_->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_NORMAL);
+  }
 }
 
 void NativeWidgetAura::SetFullscreen(bool fullscreen) {