Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/extension_management_internal.h

Index: chrome/browser/extensions/extension_management_internal.h
diff --git a/chrome/browser/extensions/extension_management_internal.h b/chrome/browser/extensions/extension_management_internal.h
index 36eb6ccde75f2339ef3afacef800fa7a463cd6c0..d3d63bef6fadb978f062f9758186927f53778f71 100644
--- a/chrome/browser/extensions/extension_management_internal.h
+++ b/chrome/browser/extensions/extension_management_internal.h
@@ -91,7 +91,7 @@ struct IndividualSettings {
   // Minimum version required for an extensions, applies to per-extension
   // settings only. Extension (with specified extension ID) with version older
   // than the specified minimum version will be disabled.
-  scoped_ptr<base::Version> minimum_version_required;
+  std::unique_ptr<base::Version> minimum_version_required;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(IndividualSettings);