Use improved VariationParamsManager to hide details.

components/ntp_snippets/remote/ntp_snippets_fetcher.h

Index: components/ntp_snippets/remote/ntp_snippets_fetcher.h
diff --git a/components/ntp_snippets/remote/ntp_snippets_fetcher.h b/components/ntp_snippets/remote/ntp_snippets_fetcher.h
index 62437c99096287262a34c2022b1411af6ca86f7f..a27087dc2a1ca01e99a1d1151b0aa3065ae8e602 100644
--- a/components/ntp_snippets/remote/ntp_snippets_fetcher.h
+++ b/components/ntp_snippets/remote/ntp_snippets_fetcher.h
@@ -230,12 +230,6 @@ class NTPSnippetsFetcher : public OAuth2TokenService::Consumer,
       return *this;
     }
 
-   protected:
-    // TODO(fhorschig): As soon as crbug.com/crbug.com/645447 is resolved,
-    // make these an implementation detail in the body and remove the mock.
-    virtual bool IsSendingTopLanguagesEnabled() const;
-    virtual bool IsSendingUserClassEnabled() const;
-
    private:
     std::string BuildHeaders() const;
     std::string BuildBody() const;