Fix build, fallout from change 451f6b981a

Change-Id: Id85d06221eccbda786721a05f3f6d9d94c1cbb74

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContentProvider.java

@@ -134,4 +134,15 @@ public final class BridgeContentProvider implements IContentProvider {
         // TODO Auto-generated method stub
         return null;
     }
+
+
+    @Override
+    public Uri canonicalize(String callingPkg, Uri uri) throws RemoteException {
+        return null;
+    }
+
+    @Override
+    public Uri uncanonicalize(String callingPkg, Uri uri) throws RemoteException {
+        return null;
+    }
 }