Rename usesOverlayScrollbars of settings to mockScrollbarsUseOverlay

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 49 matching lines @@
     : m_originalCSSExclusionsEnabled(RuntimeEnabledFeatures::cssExclusionsEnabled())
     , m_originalAuthorShadowDOMForAnyElementEnabled(RuntimeEnabledFeatures::authorShadowDOMForAnyElementEnabled())
     , m_originalExperimentalWebSocketEnabled(settings->experimentalWebSocketEnabled())
     , m_originalStyleScoped(RuntimeEnabledFeatures::styleScopedEnabled())
     , m_originalEditingBehavior(settings->editingBehaviorType())
     , m_originalTextAutosizingEnabled(settings->textAutosizingEnabled())
     , m_originalTextAutosizingWindowSizeOverride(settings->textAutosizingWindowSizeOverride())
     , m_originalTextAutosizingFontScaleFactor(settings->textAutosizingFontScaleFactor())
     , m_originalMediaTypeOverride(settings->mediaTypeOverride())
     , m_originalMockScrollbarsEnabled(settings->mockScrollbarsEnabled())
+    , m_originalMockScrollbarsUseOverlay(settings->mockScrollbarsUseOverlay())
     , m_langAttributeAwareFormControlUIEnabled(RuntimeEnabledFeatures::langAttributeAwareFormControlUIEnabled())
     , m_imagesEnabled(settings->areImagesEnabled())
     , m_shouldDisplaySubtitles(settings->shouldDisplaySubtitles())
     , m_shouldDisplayCaptions(settings->shouldDisplayCaptions())
     , m_shouldDisplayTextDescriptions(settings->shouldDisplayTextDescriptions())
     , m_defaultVideoPosterURL(settings->defaultVideoPosterURL())
     , m_originalCompositorDrivenAcceleratedScrollEnabled(settings->isCompositorDrivenAcceleratedScrollingEnabled())
 {
 }
 
 void InternalSettings::Backup::restoreTo(Settings* settings)
 {
     RuntimeEnabledFeatures::setCSSExclusionsEnabled(m_originalCSSExclusionsEnabled);
     RuntimeEnabledFeatures::setAuthorShadowDOMForAnyElementEnabled(m_originalAuthorShadowDOMForAnyElementEnabled);
     settings->setExperimentalWebSocketEnabled(m_originalExperimentalWebSocketEnabled);
     RuntimeEnabledFeatures::setStyleScopedEnabled(m_originalStyleScoped);
     settings->setEditingBehaviorType(m_originalEditingBehavior);
     settings->setTextAutosizingEnabled(m_originalTextAutosizingEnabled);
     settings->setTextAutosizingWindowSizeOverride(m_originalTextAutosizingWindowSizeOverride);
     settings->setTextAutosizingFontScaleFactor(m_originalTextAutosizingFontScaleFactor);
     settings->setMediaTypeOverride(m_originalMediaTypeOverride);
     settings->setMockScrollbarsEnabled(m_originalMockScrollbarsEnabled);
+    settings->setMockScrollbarsUseOverlay(m_originalMockScrollbarsUseOverlay);
     RuntimeEnabledFeatures::setLangAttributeAwareFormControlUIEnabled(m_langAttributeAwareFormControlUIEnabled);
     settings->setImagesEnabled(m_imagesEnabled);
     settings->setShouldDisplaySubtitles(m_shouldDisplaySubtitles);
     settings->setShouldDisplayCaptions(m_shouldDisplayCaptions);
     settings->setShouldDisplayTextDescriptions(m_shouldDisplayTextDescriptions);
     settings->setDefaultVideoPosterURL(m_defaultVideoPosterURL);
     settings->setCompositorDrivenAcceleratedScrollingEnabled(m_originalCompositorDrivenAcceleratedScrollEnabled);
 }
 
 // We can't use RefCountedSupplement because that would try to make InternalSettings RefCounted
@@ skipping 52 matching lines @@
         return 0;
     return &page()->settings();
 }
 
 void InternalSettings::setMockScrollbarsEnabled(bool enabled, ExceptionState& es)
 {
     InternalSettingsGuardForSettings();
     settings()->setMockScrollbarsEnabled(enabled);
 }
 
+void InternalSettings::setMockScrollbarsUseOverlay(bool enabled, ExceptionState& es)
+{
+    InternalSettingsGuardForSettings();
+    settings()->setMockScrollbarsUseOverlay(enabled);
+}
+
 void InternalSettings::setAuthorShadowDOMForAnyElementEnabled(bool isEnabled)
 {
     RuntimeEnabledFeatures::setAuthorShadowDOMForAnyElementEnabled(isEnabled);
 }
 
 void InternalSettings::setExperimentalWebSocketEnabled(bool isEnabled)
 {
     settings()->setExperimentalWebSocketEnabled(isEnabled);
 }
 
@@ skipping 127 matching lines @@
     settings()->setImagesEnabled(enabled);
 }
 
 void InternalSettings::setDefaultVideoPosterURL(const String& url, ExceptionState& es)
 {
     InternalSettingsGuardForSettings();
     settings()->setDefaultVideoPosterURL(url);
 }
 
 }