Demonstrate external-window-mode in mus-demo

services/ui/display/platform_screen_stub.h

Index: services/ui/display/platform_screen_stub.h
diff --git a/services/ui/display/platform_screen_stub.h b/services/ui/display/platform_screen_stub.h
index 787f497c2af7bcd2b770ba080cc4eefcb0ceaf60..44c2ca8b09ff62faa5abeb1ada60f40748fb58f9 100644
--- a/services/ui/display/platform_screen_stub.h
+++ b/services/ui/display/platform_screen_stub.h
@@ -26,7 +26,8 @@ class PlatformScreenStub : public PlatformScreen {
 
   // PlatformScreen.
   void AddInterfaces(service_manager::InterfaceRegistry* registry) override;
-  void Init(PlatformScreenDelegate* delegate) override;
+  void Init(PlatformScreenDelegate* delegate,
+            WindowMode window_mode = WINDOW_MODE_INTERNAL) override;

[rjkroege, 2016/11/24 00:58:28]

I'd prefer if you didn't specify a default argument like this and style guide
suggests that they not be used on virtual functions. Besides, I think you've
touched almost all of the call sites anyway?

[Tom (Use chromium acct), 2016/11/28 20:47:37]

Done.

   void RequestCloseDisplay(int64_t display_id) override;
   int64_t GetPrimaryDisplayId() const override;