mac: Prepare for -Wunused-functions.

chrome/browser/google_apis/drive_api_url_generator.cc

Index: chrome/browser/google_apis/drive_api_url_generator.cc
diff --git a/chrome/browser/google_apis/drive_api_url_generator.cc b/chrome/browser/google_apis/drive_api_url_generator.cc
index db4cc2eb4317bc21ae8c9500c24a705ea63c65ae..b5dc805118565024f5f4a8da656191564924f6bc 100644
--- a/chrome/browser/google_apis/drive_api_url_generator.cc
+++ b/chrome/browser/google_apis/drive_api_url_generator.cc
@@ -33,12 +33,6 @@ GURL AddResumableUploadParam(const GURL& url) {
   return net::AppendOrReplaceQueryParameter(url, "uploadType", "resumable");
 }
 
-GURL AddMaxResultParam(const GURL& url, int max_results) {
-  DCHECK_GT(max_results, 0);
-  return net::AppendOrReplaceQueryParameter(
-      url, "maxResults", base::IntToString(max_results));
-}
-
 }  // namespace
 
 DriveApiUrlGenerator::DriveApiUrlGenerator(const GURL& base_url,