Use stricter type checking in UMA_HISTOGRAM_ENUMERATION

chrome/browser/chromeos/policy/upload_job_impl.cc

Index: chrome/browser/chromeos/policy/upload_job_impl.cc
diff --git a/chrome/browser/chromeos/policy/upload_job_impl.cc b/chrome/browser/chromeos/policy/upload_job_impl.cc
index 834294e60349d395f72ba814bcf9477363215ef9..9d8c69cfcf2c41529a77c9f95c09b28dc414bc01 100644
--- a/chrome/browser/chromeos/policy/upload_job_impl.cc
+++ b/chrome/browser/chromeos/policy/upload_job_impl.cc
@@ -411,8 +411,9 @@ void UploadJobImpl::OnURLFetchComplete(const net::URLFetcher* source) {
       access_token_.clear();
       post_data_.reset();
       state_ = SUCCESS;
-      UMA_HISTOGRAM_ENUMERATION(kUploadJobSuccessHistogram, retry_,
-                                UploadJobSuccess::REQUEST_MAX);
+      UMA_HISTOGRAM_EXACT_LINEAR(
+          kUploadJobSuccessHistogram, retry_,
+          static_cast<int>(UploadJobSuccess::REQUEST_MAX));
       delegate_->OnSuccess();
     } else if (response_code == net::HTTP_UNAUTHORIZED) {
       SYSLOG(ERROR) << "Unauthorized request.";