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/ResolverController.h b/server/ResolverController.h
index d0c984f..3da9ac9 100644
--- a/server/ResolverController.h
+++ b/server/ResolverController.h
@@ -22,13 +22,12 @@
 #include <linux/in.h>
 
 struct __res_params;
-class DumpWriter;
 
 namespace android {
 namespace net {
+
+class DumpWriter;
 struct ResolverStats;
-}  // namespace net
-}  // namespace android
 
 class ResolverController {
 public:
@@ -59,4 +58,7 @@
     void dump(DumpWriter& dw, unsigned netId);
 };
 
+}  // namespace net
+}  // namespace android
+
 #endif /* _RESOLVER_CONTROLLER_H_ */