Remove unused chrome.screenlockPrivate methods

chrome/common/extensions/api/screenlock_private.idl

Index: chrome/common/extensions/api/screenlock_private.idl
diff --git a/chrome/common/extensions/api/screenlock_private.idl b/chrome/common/extensions/api/screenlock_private.idl
index d33bdd565b09fa932956c2f23dbde3868080d882..9af2160f813c4098b37c8fb38854ceeec3537cd0 100644
--- a/chrome/common/extensions/api/screenlock_private.idl
+++ b/chrome/common/extensions/api/screenlock_private.idl
@@ -16,16 +16,7 @@ namespace screenlockPrivate {
   //                 in the password field.
   enum AuthType {offlinePassword, numericPin, userClick};
 
-  // Extension resource for a icon representation for a scale factor.
-  dictionary IconRepresentation {
-    // The scale factor the representation is for.
-    double scaleFactor;
-    // The image resource URL.
-    DOMString url;
-  };
-
   callback BooleanCallback = void(boolean locked);
-  callback AuthTypeCallback = void(AuthType authType);
 
   interface Functions {
     // Returns true if the screen is currently locked, false otherwise.
@@ -35,27 +26,6 @@ namespace screenlockPrivate {
     // <code>locked=false</code> to unlock it.
     static void setLocked(boolean locked);
 
-    // Show a message to the user on the unlock UI if the screen is locked.
-    static void showMessage(DOMString message);
-
-    // Show a custom icon beside the input field on the user pod.
-    // |icon|: Extension resoucres for the icon's multi-scale representations.
-    //     Currently, only scales 1 and 2 are supported. The list must have a
-    //     resource for at least scale 1.
-    static void showCustomIcon(IconRepresentation[] icon);
-
-    // Hides the custom icon added by $(ref:showCustomIcon)().
-    static void hideCustomIcon();
-
-    // Returns the current auth type used for the user pod.
-    static void getAuthType(AuthTypeCallback callback);
-
-    // Set the type of the authentication for the user pod. The input field
-    // area of the user pod below the user's portrait will be changed.
-    // |authType|: The type of authentication to use.
-    // |initialValue|: The initial value to populate the input field.
-    static void setAuthType(AuthType authType, optional DOMString initialValue);
-
     // Accepts or rejects the current auth attempt.
     static void acceptAuthAttempt(boolean accept);
   };