Put most of netd into the android::net namespace.

Test: netd_{unit,integration}_test pass
Test: bullhead builds, boots
Bug: 34873832
Change-Id: I0a252328041b342f9c03cd08c11a69d452b045b3
diff --git a/server/NetworkController.h b/server/NetworkController.h
index 07e743c..0c6cd63 100644
--- a/server/NetworkController.h
+++ b/server/NetworkController.h
@@ -28,6 +28,11 @@
 #include <sys/types.h>
 #include <vector>
 
+struct android_net_context;
+
+namespace android {
+namespace net {
+
 class DumpWriter;
 class Network;
 class UidRanges;
@@ -116,4 +121,7 @@
 
 };
 
+}  // namespace net
+}  // namespace android
+
 #endif  // NETD_SERVER_NETWORK_CONTROLLER_H