Support the full-screen state when showing a chrome window

ui/views/win/hwnd_message_handler.cc

Index: ui/views/win/hwnd_message_handler.cc
diff --git a/ui/views/win/hwnd_message_handler.cc b/ui/views/win/hwnd_message_handler.cc
index b48a4db5ddb2d27be422bc3af4cf0ca18a0701a8..13cc62cbfbbe0db0a62cf78f37d39da3f0e2ce33 100644
--- a/ui/views/win/hwnd_message_handler.cc
+++ b/ui/views/win/hwnd_message_handler.cc
@@ -569,6 +569,10 @@ void HWNDMessageHandler::ShowWindowWithState(ui::WindowShowState show_state) {
     case ui::SHOW_STATE_NORMAL:
       native_show_state = SW_SHOWNORMAL;
       break;
+    case ui::SHOW_STATE_FULLSCREEN:
+      native_show_state = SW_SHOWNORMAL;
+      SetFullscreen(true);

[sky, 2015/05/19 04:20:04]

I'm a bit nervous about invoking this before the window is actually showing.

[joone, 2015/05/19 17:40:49]

When SetFullscreen is called after ShowWindow, we can see the transition from
windowed(black) to full screen.

+      break;
     default:
       native_show_state = delegate_->GetInitialShowState();
       break;