Add CanMinimize to classes that implement WidgetDelegate::CanMaximize.

components/native_app_window/native_app_window_views.cc

Index: components/native_app_window/native_app_window_views.cc
diff --git a/components/native_app_window/native_app_window_views.cc b/components/native_app_window/native_app_window_views.cc
index 766b08861985b3e0f2d40f7a9f41afdc9801a11d..fb9168210365db4454b1628eaa9a1e91f67b6eab 100644
--- a/components/native_app_window/native_app_window_views.cc
+++ b/components/native_app_window/native_app_window_views.cc
@@ -218,6 +218,10 @@ bool NativeAppWindowViews::CanMaximize() const {
          !app_window_->window_type_is_panel() && !WidgetHasHitTestMask();
 }
 
+bool NativeAppWindowViews::CanMinimize() const {
+  return true;

[James Cook, 2014/09/23 00:57:53]

Is this right?  All views app windows opened by chrome.app.window.create() can
be minimized?

(Also, should you be an owner of this directory? I see you are an owner of the
app_window API.  Feel free to add yourself.)

[jackhou1, 2014/09/23 01:28:48]

Yeah, I think that's what we want. It's not how it currently behaves, largely
due to not having a CanMinimize().

That said, I should stick to the CL description and leave behavior unchanged in
this CL.

+}
+
 base::string16 NativeAppWindowViews::GetWindowTitle() const {
   return app_window_->GetTitle();
 }