Revert "Reland of Default enable main frame before activation and remove finch experiment. (patchse…

content/public/common/content_features.cc

Index: content/public/common/content_features.cc
diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
index 656b8fb78f25e535e8a6834d33a8675d84a6471b..9eaf1f2afcdfeab172b9bbcec80785c02eb73a97 100644
--- a/content/public/common/content_features.cc
+++ b/content/public/common/content_features.cc
@@ -95,6 +95,11 @@ const base::Feature kGuestViewCrossProcessFrames{
 // Enables lazily parsing css properties for performance.
 const base::Feature kLazyParseCSS{"LazyParseCSS",
                                   base::FEATURE_DISABLED_BY_DEFAULT};
+// Can main thread be pipelined with activation. Always disabled for devices
+// with fewer than 4 cores irrespective of this flag. Can also be overridden by
+// --enable(disable)-main-frame-before-activation command line flag.
+const base::Feature kMainFrameBeforeActivation{
+    "MainFrameBeforeActivation", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // FeatureList definition for trials to enable the download button on
 // MediaDocument.