Add CanMinimize to classes that implement WidgetDelegate::CanMaximize.

ui/views/widget/native_widget_aura_unittest.cc

Index: ui/views/widget/native_widget_aura_unittest.cc
diff --git a/ui/views/widget/native_widget_aura_unittest.cc b/ui/views/widget/native_widget_aura_unittest.cc
index 3c6d3cc49adc6e6f4bf214bc33b4a84e1f9b7a4d..282f8eed8e7826d5199556d5132a97c34b37401c 100644
--- a/ui/views/widget/native_widget_aura_unittest.cc
+++ b/ui/views/widget/native_widget_aura_unittest.cc
@@ -212,6 +212,9 @@ class PropertyTestWidgetDelegate : public views::WidgetDelegate {
   virtual bool CanMaximize() const OVERRIDE {
     return true;
   }
+  virtual bool CanMinimize() const OVERRIDE {
+    return true;
+  }
   virtual bool CanResize() const OVERRIDE {
     return true;
   }