Wire WebFonts intervention v2 for ECT of 3G

content/child/runtime_features.cc

Index: content/child/runtime_features.cc
diff --git a/content/child/runtime_features.cc b/content/child/runtime_features.cc
index 44a0a8a4b45185e028c0c3b6dba8f796ea31ba87..078b65a7915b4183580b351354c498736b92342a 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -202,6 +202,10 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
   const std::string webfonts_intervention_v2_about_flag =
       command_line.GetSwitchValueASCII(switches::kEnableWebFontsInterventionV2);
   if (!webfonts_intervention_v2_about_flag.empty()) {
+    WebRuntimeFeatures::enableWebFontsInterventionV2With3G(
+        webfonts_intervention_v2_about_flag.compare(
+            switches::kEnableWebFontsInterventionV2SwitchValueEnabledWith3G) ==
+        0);
     WebRuntimeFeatures::enableWebFontsInterventionV2With2G(
         webfonts_intervention_v2_about_flag.compare(
             switches::kEnableWebFontsInterventionV2SwitchValueEnabledWith2G) ==
@@ -212,6 +216,10 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
                 kEnableWebFontsInterventionV2SwitchValueEnabledWithSlow2G) ==
         0);
   } else {
+    WebRuntimeFeatures::enableWebFontsInterventionV2With3G(base::StartsWith(
+        webfonts_intervention_v2_group_name,
+        switches::kEnableWebFontsInterventionV2SwitchValueEnabledWith3G,
+        base::CompareCase::INSENSITIVE_ASCII));
     WebRuntimeFeatures::enableWebFontsInterventionV2With2G(base::StartsWith(
         webfonts_intervention_v2_group_name,
         switches::kEnableWebFontsInterventionV2SwitchValueEnabledWith2G,