Add WindowPinType property on arua::Window

ui/aura/mus/property_converter.cc

Index: ui/aura/mus/property_converter.cc
diff --git a/ui/aura/mus/property_converter.cc b/ui/aura/mus/property_converter.cc
index c9a4138b3388c92d333a5cdbd3690d8599e6ed9a..e6ae0cc68cd9fd611211f16f6b32cd7645235d8d 100644
--- a/ui/aura/mus/property_converter.cc
+++ b/ui/aura/mus/property_converter.cc
@@ -49,6 +49,12 @@ bool ValidateShowState(int64_t value) {
          value == int64_t(ui::mojom::ShowState::FULLSCREEN);
 }
 
+bool ValidateWindowPinType(int64_t value) {
+  return value == int64_t(ui::mojom::WindowPinType::NONE) ||
+         value == int64_t(ui::mojom::WindowPinType::PINNED) ||
+         value == int64_t(ui::mojom::WindowPinType::TRUSTED_PINNED);
+}
+
 }  // namespace
 
 PropertyConverter::PrimitiveProperty::PrimitiveProperty() {}
@@ -89,6 +95,9 @@ PropertyConverter::PropertyConverter() {
                    base::Bind(&ValidateShowState));
   RegisterProperty(client::kWindowIconKey,
                    ui::mojom::WindowManager::kWindowIcon_Property);
+  RegisterProperty(client::kWindowPinTypeKey,
+                   ui::mojom::WindowManager::kWindowPinType_Property,

[sky, 2017/03/31 04:40:26]

When you move the classes out of views you'll need to move registration of this
to ash/mus/window_manager.cc and in exo where it creates MusClient. You'll
likely want to create a function that can do the additional registration, say in
ash/public/cpp/property_registration.cc (you'll need to create this). I think
you'll also need to mirror the property in exo. See
https://cs.chromium.org/chromium/src/chrome/browser/ui/views/ash/chrome_brows...
for an example of what I mean.

[Peng, 2017/03/31 18:09:22]

Done.

+                   base::Bind(&ValidateWindowPinType));
   RegisterProperty(client::kTitleKey,
                    ui::mojom::WindowManager::kWindowTitle_Property);
 }