Remove kWebViewSurfaceControlForT

The feature flag is not needed anymore and logic around it might cause
a problem.

Bug: 1369719
Change-Id: I287fecb7e98a2cc76cb80eba9a7bbd034ef001e3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3926362
Reviewed-by: Bo Liu <boliu@chromium.org>
Commit-Queue: Vasiliy Telezhnikov <vasilyt@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1053321}

gpu/config/gpu_finch_features.cc

@@ -88,12 +88,6 @@ BASE_FEATURE(kWebViewSurfaceControl,
              "WebViewSurfaceControl",
              base::FEATURE_DISABLED_BY_DEFAULT);
 
-// Same as kWebViewSurfaceControl, but affects only Android T+, used for
-// targeting pre-release version.
-BASE_FEATURE(kWebViewSurfaceControlForT,
-             "WebViewSurfaceControlForT",
-             base::FEATURE_DISABLED_BY_DEFAULT);
-
 // Use thread-safe media path on WebView.
 BASE_FEATURE(kWebViewThreadSafeMedia,
              "WebViewThreadSafeMedia",
@@ -547,16 +541,6 @@ bool IsAndroidSurfaceControlEnabled() {
 
   // On WebView we require thread-safe media to use SurfaceControl
   if (IsUsingThreadSafeMediaForWebView()) {
-    // If main feature is not overridden from command line and we're running T+
-    // use kWebViewSurfaceControlForT to decide feature status instead so we
-    // can target pre-release android to fish out platform side bugs.
-    base::FeatureList* feature_list = base::FeatureList::GetInstance();
-    if ((!feature_list || !feature_list->IsFeatureOverriddenFromCommandLine(
-                              features::kWebViewSurfaceControl.name)) &&
-        build_info->is_at_least_t()) {
-      return base::FeatureList::IsEnabled(kWebViewSurfaceControlForT);
-    }
-
     return base::FeatureList::IsEnabled(kWebViewSurfaceControl);
   }