finished Activity mock

briar-android/test/java/android/net/http/AndroidHttpClient.java

@@ -0,0 +1,7 @@
+package android.net.http;
+
+// This class is here to fix an issue with Robolectric.
+// https://github.com/robolectric/robolectric/issues/1862
+// TODO Check if this class can be removed on next Robolectric update
+public class AndroidHttpClient {
+}