Convert Pass()→std::move() in //components/[n-z]*

BUG=557422
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[email protected]

Review URL: https://codereview.chromium.org/1548203002

Cr-Commit-Position: refs/heads/master@{#366914}
diff --git a/components/version_ui/version_handler_helper.cc b/components/version_ui/version_handler_helper.cc
index 2a9c2a1..6d049a75 100644
--- a/components/version_ui/version_handler_helper.cc
+++ b/components/version_ui/version_handler_helper.cc
@@ -4,6 +4,7 @@
 
 #include "components/version_ui/version_handler_helper.h"
 
+#include <utility>
 #include <vector>
 
 #include "base/metrics/field_trial.h"
@@ -38,7 +39,7 @@
     variations_list->Append(new base::StringValue(*it));
   }
 
-  return variations_list.Pass();
+  return std::move(variations_list);
 }
 
 }  // namespace version_ui