Don't check URLs against Safe Browsing if not supported.

chrome/browser/renderer_host/safe_browsing_resource_throttle.cc

Index: chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
diff --git a/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc b/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
index c7d53516635fa6964e38cfc745dd53d965a14acd..a1454daf8ae4710f511d647598f913aaffb1072b 100644
--- a/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
+++ b/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
@@ -63,8 +63,10 @@ SafeBrowsingResourceThrottle* SafeBrowsingResourceThrottle::MaybeCreate(
       request, resource_type, sb_service, DEFER_AT_START,
       SafeBrowsingService::CHECK_ALL_RESOURCE_TYPES);
 #elif defined(SAFE_BROWSING_DB_REMOTE)
-  if (!sb_service->IsAndroidFieldTrialEnabled())
+  if (!sb_service->IsAndroidFieldTrialEnabled() ||
+      !sb_service->database_manager()->IsSupported()) {
     return nullptr;
+  }
 
   // Throttle consults a remote database before processing the response.
   return new SafeBrowsingResourceThrottle(