Allow Chrome apps to create Ash Panels (apps v2)

chrome/common/extensions/api/app_window.idl

Index: chrome/common/extensions/api/app_window.idl
diff --git a/chrome/common/extensions/api/app_window.idl b/chrome/common/extensions/api/app_window.idl
index 3ca6fb9b173465dd3d2d0ea29f68909b7ac85a41..afe7500d3fbc0d882c1f94233e7a1be6b9ec48e2 100644
--- a/chrome/common/extensions/api/app_window.idl
+++ b/chrome/common/extensions/api/app_window.idl
@@ -49,7 +49,9 @@ namespace app.window {
     // Maximum height of the window.
     long? maxHeight;
 
-    // Window type: 'shell' (the default) is the only currently supported value.
+    // Window type: 
+    //  'shell' - the default window type
+    //  'panel' - a panel, managed by the OS (Currently Ash only)

[jeremya, 2012/11/29 02:49:05]

If this is ash-only, the app should be able to detect whether it's available.

[stevenjb, 2012/11/29 03:11:26]

I modified the comment to also say 'experimental'.
I think there is an open question whether to support a feature like panel
windows only in Ash beyond the 'experimental' stage, at which point we should
determine if/how to query for feature support. Sound reasonable?

     [nodoc] DOMString? type;
 
     // Frame type: 'none' or 'chrome' (defaults to 'chrome').