android: Fix UdsChannelBuilder with WiFi Proxy

We want to avoid "[{0}] Failed to resolve name. status={1}" I/O failures
for UDS channels when WiFi Proxies are enabled, as it should be local
communication.

Fixes #11922

Author: vimanikag

android/src/main/java/io/grpc/android/UdsChannelBuilder.java

@@ -21,6 +21,7 @@
 import io.grpc.ExperimentalApi;
 import io.grpc.InsecureChannelCredentials;
 import io.grpc.ManagedChannelBuilder;
+import io.grpc.internal.GrpcUtil;
 import java.lang.reflect.InvocationTargetException;
 import javax.annotation.Nullable;
 import javax.net.SocketFactory;
@@ -81,7 +82,7 @@ public static ManagedChannelBuilder<?> forPath(String path, Namespace namespace)
       OKHTTP_CHANNEL_BUILDER_CLASS
           .getMethod("socketFactory", SocketFactory.class)
           .invoke(builder, new UdsSocketFactory(path, namespace));
-      return builder;
+      return builder.proxyDetector(GrpcUtil.NOOP_PROXY_DETECTOR);
     } catch (IllegalAccessException e) {
       throw new RuntimeException("Failed to create OkHttpChannelBuilder", e);
     } catch (NoSuchMethodException e) {