base::mac::IsOSSierra() -> base::mac::IsOS10_12(), etc.

content/browser/bootstrap_sandbox_manager_mac.cc

Index: content/browser/bootstrap_sandbox_manager_mac.cc
diff --git a/content/browser/bootstrap_sandbox_manager_mac.cc b/content/browser/bootstrap_sandbox_manager_mac.cc
index 61d1b1e3b04bb09c40f72df3386c96fa62574cb5..0941895a60c68f1bc5178d87f9cbd228667f8572 100644
--- a/content/browser/bootstrap_sandbox_manager_mac.cc
+++ b/content/browser/bootstrap_sandbox_manager_mac.cc
@@ -80,7 +80,7 @@ void BootstrapSandboxManager::RegisterRendererPolicy() {
 
   // Allow access to launchservicesd on 10.10+ otherwise the renderer will crash
   // attempting to get its ASN. http://crbug.com/533537
-  if (base::mac::IsOSYosemiteOrLater()) {
+  if (base::mac::IsAtLeastOS10_10()) {
     policy.rules["com.apple.coreservices.launchservicesd"] =
         sandbox::Rule(sandbox::POLICY_ALLOW);
   }