Revert "Update all users of base::Version to explicitly specify the namespace, and clean up the hea…

components/variations/processed_study.cc

Index: components/variations/processed_study.cc
diff --git a/components/variations/processed_study.cc b/components/variations/processed_study.cc
index a34f89435e8f3e984e9ab9a3ac0f1a132d745059..9d0e4f14d512dbda40a6fda36a672a178e1257b0 100644
--- a/components/variations/processed_study.cc
+++ b/components/variations/processed_study.cc
@@ -23,13 +23,13 @@ bool ValidateStudyAndComputeTotalProbability(
     return false;
   }
   if (study.filter().has_min_version() &&
-      !base::Version::IsValidWildcardString(study.filter().min_version())) {
+      !Version::IsValidWildcardString(study.filter().min_version())) {
     DVLOG(1) << study.name() << " has invalid min version: "
              << study.filter().min_version();
     return false;
   }
   if (study.filter().has_max_version() &&
-      !base::Version::IsValidWildcardString(study.filter().max_version())) {
+      !Version::IsValidWildcardString(study.filter().max_version())) {
     DVLOG(1) << study.name() << " has invalid max version: "
              << study.filter().max_version();
     return false;