android: Use new proxy from PROXY_CHANGE intent

net/proxy/proxy_config_service_android.h

Index: net/proxy/proxy_config_service_android.h
diff --git a/net/proxy/proxy_config_service_android.h b/net/proxy/proxy_config_service_android.h
index 3ddbaebe78e9ead4b3e73567bbb7a74c784f587e..949ec426ebcf0dfd9d4710db8f4a12f8bdddf4f6 100644
--- a/net/proxy/proxy_config_service_android.h
+++ b/net/proxy/proxy_config_service_android.h
@@ -39,7 +39,12 @@ class NET_EXPORT ProxyConfigServiceAndroid : public ProxyConfigService {
     virtual ~JNIDelegate() {}
 
     // Called from Java (on JNI thread) to signal that the proxy settings have
-    // changed.
+    // changed. The string and int arguments (the host/port pair for the proxy)
+    // are either a host/port pair or ("", 0) to indicate "no proxy".
+    virtual void ProxySettingsChangedTo(JNIEnv*, jobject, jstring, jint) = 0;
+
+    // Called from Java (on JNI thread) to signal that the proxy settings have
+    // changed. New proxy settings are fetched from the system property store.
     virtual void ProxySettingsChanged(JNIEnv*, jobject) = 0;
   };