API change to allow sticker authentication for devices

chrome/common/extensions/api/gcd_private.idl

Index: chrome/common/extensions/api/gcd_private.idl
diff --git a/chrome/common/extensions/api/gcd_private.idl b/chrome/common/extensions/api/gcd_private.idl
index 918a80d95ccb4cd2710ff0cf134af74b55d7aeba..0165ceae78f732b4af96c4ba0a967cc8e92e5e8e 100644
--- a/chrome/common/extensions/api/gcd_private.idl
+++ b/chrome/common/extensions/api/gcd_private.idl
@@ -46,13 +46,16 @@ namespace gcdPrivate {
     // Unknown session.
     unknownSessionError,
 
+    // Bad confirmation code. Ask user to retype.
+    badConfirmationCodeError,
+
     // Success.
     success
   };
 
   enum ConfirmationType {
     displayCode,
-    audio
+    stickerCode
   };
 
   callback CloudDeviceListCallback = void(GCDDevice[] devices);
@@ -75,7 +78,8 @@ namespace gcdPrivate {
   // Called when the confirmation code is available or on error.
   // |sessionId| is the session ID (identifies the session for future calls)
   // |status| is the status (success or type of error)
-  // |code| is the confirmation code or empty on error
+  // |code| is the confirmation code or empty if not available (code

[Vitaly Buka (NO REVIEWS), 2014/08/21 22:15:24]

maybe 
dictionary ConfirmationInfo {
   ConfirmationType type,
   DOMString? code
}

[Noam Samuel, 2014/08/21 23:11:12]

Done.

+  //    is only available for displayCode confirmation)
   // |confirmationType| is the type of confirmation required
   callback ConfirmationCodeCallback = void(long sessionId,
                                            Status status,
@@ -124,8 +128,9 @@ namespace gcdPrivate {
                                  long port,
                                  ConfirmationCodeCallback callback);
 
-    // Confirm that the code is correct. Device will still need to confirm.
+    // Send confirmation code. Device will still need to confirm.
     static void confirmCode(long sessionId,

[Vitaly Buka (NO REVIEWS), 2014/08/21 22:15:24]

It's not clear what should be pass here for displayCode.
maybe use two different functions?

or just make it mandatory to pass code back, please update comment for that

[Noam Samuel, 2014/08/21 23:11:12]

Done.

+                            DOMString code,
                             SessionEstablishedCallback callback);
 
     // Send an encrypted message to the device. |api| is the API path and