Delete unused raster-inducing scroll flag and feature name.

Tbr: nasko@chromium.org
Change-Id: Ief500917465b2cdf29f07ee627248aa7f3b9a2de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1842752
Commit-Queue: Chris Harrelson <chrishtr@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Reviewed-by: Xida Chen <xidachen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#703533}

content/child/runtime_features.cc

@@ -250,9 +250,6 @@ void SetRuntimeFeaturesFromChromiumFeatures() {
                                                 false);
   }
 
-  if (base::FeatureList::IsEnabled(features::kRasterInducingScroll))
-    WebRuntimeFeatures::EnableRasterInducingScroll(true);
-
   WebRuntimeFeatures::EnableFeatureFromString(
       "AllowContentInitiatedDataUrlNavigations",
       base::FeatureList::IsEnabled(

content/public/common/content_features.cc

@@ -401,10 +401,6 @@ const base::Feature kPrioritizeBootstrapTasks = {
 const base::Feature kProactivelySwapBrowsingInstance{
     "ProactivelySwapBrowsingInstance", base::FEATURE_DISABLED_BY_DEFAULT};
 
-// Enable raster-inducing scroll.
-const base::Feature kRasterInducingScroll{"RasterInducingScroll",
-                                          base::FEATURE_DISABLED_BY_DEFAULT};
-
 // Reduce the amount of information in the default 'referer' header for
 // cross-origin requests.
 const base::Feature kReducedReferrerGranularity{

content/public/common/content_features.h

@@ -92,7 +92,6 @@ CONTENT_EXPORT extern const base::Feature
     kProcessSharingWithDefaultSiteInstances;
 CONTENT_EXPORT extern const base::Feature
     kProcessSharingWithStrictSiteInstances;
-CONTENT_EXPORT extern const base::Feature kRasterInducingScroll;
 CONTENT_EXPORT extern const base::Feature kReducedReferrerGranularity;
 CONTENT_EXPORT extern const base::Feature kReloadHiddenTabsWithCrashedSubframes;
 CONTENT_EXPORT extern const base::Feature kRenderDocumentForMainFrame;

third_party/blink/public/platform/web_runtime_features.h

@@ -153,7 +153,6 @@ class WebRuntimeFeatures {
   BLINK_PLATFORM_EXPORT static void EnablePrintBrowser(bool);
   BLINK_PLATFORM_EXPORT static void EnablePresentationAPI(bool);
   BLINK_PLATFORM_EXPORT static void EnablePushMessaging(bool);
-  BLINK_PLATFORM_EXPORT static void EnableRasterInducingScroll(bool);
   BLINK_PLATFORM_EXPORT static void EnableReducedReferrerGranularity(bool);
   BLINK_PLATFORM_EXPORT static void EnableRemotePlaybackAPI(bool);
   BLINK_PLATFORM_EXPORT static void EnableResourceLoadScheduler(bool);

third_party/blink/renderer/platform/exported/web_runtime_features.cc

@@ -361,10 +361,6 @@ void WebRuntimeFeatures::EnablePortals(bool enable) {
   RuntimeEnabledFeatures::SetPortalsEnabled(enable);
 }
 
-void WebRuntimeFeatures::EnableRasterInducingScroll(bool enable) {
-  RuntimeEnabledFeatures::SetRasterInducingScrollEnabled(enable);
-}
-
 void WebRuntimeFeatures::EnableScriptedSpeechRecognition(bool enable) {
   RuntimeEnabledFeatures::SetScriptedSpeechRecognitionEnabled(enable);
 }

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -1329,10 +1329,6 @@
       name: "PushMessagingSubscriptionChange",
       status: "experimental",
     },
-    {
-      name: "RasterInducingScroll",
-      status: "experimental",
-    },
     {
       name: "ReducedReferrerGranularity",
     },