WebView: remove unused Token Binding system APIs

These APIs never really launched, and the Token Binding protocol is no
longer supported by the chromium team (which means these APIs have been
broken for some time).

This removes most of the TokenBinding API surface, keeping (and
deprecating) just enough to allow us to still compile and run WebView
APKs.

Bug: 119576150
Test: make update-api
Change-Id: Ia5a4258aac5ed21691ea36a428b4aa7195ff21ca

1 files changed, 2 insertions, 84 deletions

diff --git a/core/java/android/webkit/TokenBindingService.java b/core/java/android/webkit/TokenBindingService.java
index b37e1b8962c5..4d2c04663579 100644
--- a/core/java/android/webkit/TokenBindingService.java
+++ b/core/java/android/webkit/TokenBindingService.java
@@ -16,12 +16,7 @@
 
 package android.webkit;
 
-import android.annotation.NonNull;
-import android.annotation.Nullable;
 import android.annotation.SystemApi;
-import android.net.Uri;
-
-import java.security.KeyPair;
 
 /**
  * Enables the token binding procotol, and provides access to the keys. See
@@ -30,86 +25,9 @@ import java.security.KeyPair;
  * All methods are required to be called on the UI thread where WebView is
  * attached to the View hierarchy.
  * @hide
+ * @deprecated this is no longer supported.
  */
 @SystemApi
+@Deprecated
 public abstract class TokenBindingService {
-
-    public static final String KEY_ALGORITHM_RSA2048_PKCS_1_5 = "RSA2048_PKCS_1.5";
-    public static final String KEY_ALGORITHM_RSA2048_PSS = "RSA2048PSS";
-    public static final String KEY_ALGORITHM_ECDSAP256 = "ECDSAP256";
-
-    /**
-     * Provides the KeyPair information.
-     */
-    public static abstract class TokenBindingKey {
-        /**
-         * The public, private key pair.
-         */
-        public abstract KeyPair getKeyPair();
-
-        /**
-         * The algorithm that is used to generate the key pair.
-         */
-        public abstract String getAlgorithm();
-    }
-
-    /**
-     * Returns the default TokenBinding service instance. At present there is
-     * only one token binding service instance for all WebView instances,
-     * however this restriction may be relaxed in the future.
-     *
-     * @return The default TokenBindingService instance.
-     */
-    public static TokenBindingService getInstance() {
-        return WebViewFactory.getProvider().getTokenBindingService();
-    }
-
-    /**
-     * Enables the token binding protocol. The token binding protocol
-     * has to be enabled before creating any WebViews.
-     *
-     * @throws IllegalStateException if a WebView was already created.
-     */
-    public abstract void enableTokenBinding();
-
-    /**
-     * Retrieves the key pair for a given origin from the internal
-     * TokenBinding key store asynchronously.
-     *
-     * The user can provide a list of acceptable algorithms for the retrieved
-     * key pair. If a key pair exists and it is in the list of algorithms, then
-     * the key is returned. If it is not in the list, no key is returned.
-     *
-     * If no key pair exists, WebView chooses an algorithm from the list, in
-     * the order given, to generate a key.
-     *
-     * The user can pass {@code null} if any algorithm is acceptable.
-     *
-     * @param origin The origin for the server.
-     * @param algorithm The list of algorithms. An IllegalArgumentException is thrown if array is
-     *                  empty.
-     * @param callback The callback that will be called when key is available.
-     */
-    public abstract void getKey(Uri origin,
-                                @Nullable String[] algorithm,
-                                @NonNull ValueCallback<TokenBindingKey> callback);
-    /**
-     * Deletes specified key (for use when associated cookie is cleared).
-     *
-     * @param origin The origin of the server.
-     * @param callback The callback that will be called when key is deleted. The
-     *        callback parameter (Boolean) will indicate if operation is
-     *        successful or if failed.
-     */
-    public abstract void deleteKey(Uri origin,
-                                   @Nullable ValueCallback<Boolean> callback);
-
-     /**
-      * Deletes all the keys (for use when cookies are cleared).
-      *
-      * @param callback The callback that will be called when keys are deleted.
-      *        The callback parameter (Boolean) will indicate if operation is
-      *        successful or if failed.
-      */
-    public abstract void deleteAllKeys(@Nullable ValueCallback<Boolean> callback);
 }