[iOS] Enable committed interstitials and Safe Browsing by default

This enables committed interstitials and hash-based Safe Browsing
by default on trunk.

Bug: 1034113, 1043382
Change-Id: Id5e08ddd24d6f693bb06ba189ae000be91bdedc2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2436350Reviewed-by: Eugene But <eugenebut@chromium.org>
Reviewed-by: Varun Khaneja <vakh@chromium.org>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Ali Juma <ajuma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812177}

components/safe_browsing/core/features.cc

@@ -121,7 +121,7 @@ const base::Feature kRealTimeUrlLookupNonMainframeEnabledForEP{
     base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kSafeBrowsingAvailableOnIOS{
-    "SafeBrowsingAvailableOnIOS", base::FEATURE_DISABLED_BY_DEFAULT};
+    "SafeBrowsingAvailableOnIOS", base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kSafeBrowsingSeparateNetworkContexts{
     "SafeBrowsingSeparateNetworkContexts", base::FEATURE_DISABLED_BY_DEFAULT};

ios/web/common/features.mm

@@ -27,7 +27,7 @@ const base::Feature kClearOldNavigationRecordsWorkaround{
     "ClearOldNavigationRecordsWorkaround", base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kSSLCommittedInterstitials{
-    "SSLCommittedInterstitials", base::FEATURE_DISABLED_BY_DEFAULT};
+    "SSLCommittedInterstitials", base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kEnablePersistentDownloads{
     "EnablePersistentDownloads", base::FEATURE_DISABLED_BY_DEFAULT};

testing/variations/fieldtrial_testing_config.json

@@ -3425,22 +3425,6 @@
             ]
         }
     ],
-    "IOSSSLCommittedInterstitials": [
-        {
-            "platforms": [
-                "ios"
-            ],
-            "experiments": [
-                {
-                    "name": "Enabled",
-                    "enable_features": [
-                        "SSLCommittedInterstitials",
-                        "SafeBrowsingAvailableOnIOS"
-                    ]
-                }
-            ]
-        }
-    ],
     "Identifiability": [
         {
             "platforms": [