Minimal implementation of Widevine MediaCAS ECMG.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=226515998

common/status.cc

@@ -12,10 +12,9 @@
 
 #include "absl/base/macros.h"
 #include "absl/strings/str_cat.h"
-#include "common/status.h"
+#include "util/error_space.h"
 
 namespace widevine {
-namespace util {
 
 namespace {
 
@@ -72,5 +71,4 @@ std::ostream& operator<<(std::ostream& os, const Status& x) {
   return os;
 }
 
-}  // namespace util
 }  // namespace widevine