Enable SafeBrowsingRealTimeUrlLookupEnabled by default.

This feature is now fully enabled via Finch.

R=xinghuilu

Bug: 963165
Change-Id: Ice9c1bcc95736b3cd8dffd57f8b92ba164c592d5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2216315
Auto-Submit: Varun Khaneja <vakh@chromium.org>
Commit-Queue: Xinghui Lu <xinghuilu@chromium.org>
Reviewed-by: Xinghui Lu <xinghuilu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#771925}

components/safe_browsing/core/features.cc

@@ -69,7 +69,7 @@ const base::Feature kPromptAppForDeepScanning{
     "SafeBrowsingPromptAppForDeepScanning", base::FEATURE_DISABLED_BY_DEFAULT};
 
 const base::Feature kRealTimeUrlLookupEnabled{
-    "SafeBrowsingRealTimeUrlLookupEnabled", base::FEATURE_DISABLED_BY_DEFAULT};
+    "SafeBrowsingRealTimeUrlLookupEnabled", base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kRealTimeUrlLookupEnabledForAllAndroidDevices{
     "SafeBrowsingRealTimeUrlLookupEnabledForAllAndroidDevices",