ScrollTopLeftInterop should not be marked experimental

Source/core/testing/InternalSettings.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 58 matching lines @@
     , m_originalDisplayModeOverride(settings->displayModeOverride())
     , m_originalMockScrollbarsEnabled(settings->mockScrollbarsEnabled())
     , m_originalMockGestureTapHighlightsEnabled(settings->mockGestureTapHighlightsEnabled())
     , m_langAttributeAwareFormControlUIEnabled(RuntimeEnabledFeatures::langAttributeAwareFormControlUIEnabled())
     , m_imagesEnabled(settings->imagesEnabled())
     , m_defaultVideoPosterURL(settings->defaultVideoPosterURL())
     , m_originalLayerSquashingEnabled(settings->layerSquashingEnabled())
     , m_originalPseudoClassesInMatchingCriteriaInAuthorShadowTreesEnabled(RuntimeEnabledFeatures::pseudoClassesInMatchingCriteriaInAuthorShadowTreesEnabled())
     , m_originalImageColorProfilesEnabled(RuntimeEnabledFeatures::imageColorProfilesEnabled())
     , m_originalImageAnimationPolicy(settings->imageAnimationPolicy())
+    , m_originalScrollTopLeftInteropEnabled(RuntimeEnabledFeatures::scrollTopLeftInteropEnabled())
 {
 }
 
 void InternalSettings::Backup::restoreTo(Settings* settings)
 {
     RuntimeEnabledFeatures::setAuthorShadowDOMForAnyElementEnabled(m_originalAuthorShadowDOMForAnyElementEnabled);
     RuntimeEnabledFeatures::setExperimentalContentSecurityPolicyFeaturesEnabled(m_originalCSP);
     RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(m_originalOverlayScrollbarsEnabled);
     settings->setEditingBehaviorType(m_originalEditingBehavior);
     settings->setTextAutosizingEnabled(m_originalTextAutosizingEnabled);
     settings->setTextAutosizingWindowSizeOverride(m_originalTextAutosizingWindowSizeOverride);
     settings->setAccessibilityFontScaleFactor(m_originalAccessibilityFontScaleFactor);
     settings->setMediaTypeOverride(m_originalMediaTypeOverride);
     settings->setDisplayModeOverride(m_originalDisplayModeOverride);
     settings->setMockScrollbarsEnabled(m_originalMockScrollbarsEnabled);
     settings->setMockGestureTapHighlightsEnabled(m_originalMockGestureTapHighlightsEnabled);
     RuntimeEnabledFeatures::setLangAttributeAwareFormControlUIEnabled(m_langAttributeAwareFormControlUIEnabled);
     settings->setImagesEnabled(m_imagesEnabled);
     settings->setDefaultVideoPosterURL(m_defaultVideoPosterURL);
     settings->genericFontFamilySettings().reset();
     RuntimeEnabledFeatures::setPseudoClassesInMatchingCriteriaInAuthorShadowTreesEnabled(m_originalPseudoClassesInMatchingCriteriaInAuthorShadowTreesEnabled);
     RuntimeEnabledFeatures::setImageColorProfilesEnabled(m_originalImageColorProfilesEnabled);
     settings->setImageAnimationPolicy(m_originalImageAnimationPolicy);
+    RuntimeEnabledFeatures::setScrollTopLeftInteropEnabled(m_originalScrollTopLeftInteropEnabled);
 }
 
 #if ENABLE(OILPAN)
 InternalSettings* InternalSettings::from(Page& page)
 {
     if (!HeapSupplement<Page>::from(page, supplementName()))
         HeapSupplement<Page>::provideTo(page, supplementName(), new InternalSettings(page));
     return static_cast<InternalSettings*>(HeapSupplement<Page>::from(page, supplementName()));
 }
 #else
@@ skipping 348 matching lines @@
     InternalSettingsGuardForSettings();
     if (equalIgnoringCase(policy, "allowed"))
         settings()->setImageAnimationPolicy(ImageAnimationPolicyAllowed);
     else if (equalIgnoringCase(policy, "once"))
         settings()->setImageAnimationPolicy(ImageAnimationPolicyAnimateOnce);
     else if (equalIgnoringCase(policy, "none"))
         settings()->setImageAnimationPolicy(ImageAnimationPolicyNoAnimation);
     else
         exceptionState.throwDOMException(SyntaxError, "The image animation policy provided ('" + policy + "') is invalid.");
 }
+
+void InternalSettings::setScrollTopLeftInteropEnabled(bool enabled)
+{
+    RuntimeEnabledFeatures::setScrollTopLeftInteropEnabled(enabled);
 }
+}