Enable ServiceWorkerNavigationPreload by default for Origin-Trial.

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 96e349ff18aecb2335349ee6861fa8464f0bc3c7..eca23b3f59273b1b621eb6c0a07a3b6379b67c25 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -314,13 +314,13 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
       base::FeatureList::IsEnabled(features::kWebPayments));
 #endif
 
-  // We set the RuntimeEnabledFeatures for Navigation Preload feature only when
-  // it is set by "--enable-features" flag.
-  // While we are experimenting this feature using Origin Trial, we enable this
-  // feature using the field trial mechanism. So FeatureList::IsEnabled() always
-  // returns true. But, unless the command line explicitly enabled the feature,
-  // this feature should be available only when a valid origin trial token is
-  // set. This check is done by the generated code of
+  // Sets the RuntimeEnabledFeatures for Navigation Preload feature only when
+  // '--enable-features' command line flag is given. While experimenting this
+  // feature using Origin-Trial, this base::Feature is enabled by default in
+  // content_features.cc. So FeatureList::IsEnabled() always returns true. But,
+  // unless the command line explicitly enabled the feature, this feature should
+  // be available only when a valid origin trial token is set. This check is
+  // done by the generated code of
   // blink::OriginTrials::serviceWorkerNavigationPreloadEnabled(). See the
   // comments in service_worker_version.h for the details.
   if (base::FeatureList::GetInstance()->IsFeatureOverriddenFromCommandLine(