Move the CSS Device Adaptation @viewport rule support behind a runtime flag

Source/core/css/StyleRule.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006, 2008, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 70 matching lines @@
     case Import:
         static_cast<const StyleRuleImport*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case Keyframes:
         static_cast<const StyleRuleKeyframes*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case Supports:
     case HostInternal:
         static_cast<const StyleRuleHost*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
-#if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
         static_cast<const StyleRuleViewport*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
-#endif
     case Filter:
         static_cast<const StyleRuleFilter*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case Unknown:
     case Charset:
     case Keyframe:
         ASSERT_NOT_REACHED();
         return;
     }
     ASSERT_NOT_REACHED();
@@ skipping 22 matching lines @@
         return;
     case Import:
         delete static_cast<StyleRuleImport*>(this);
         return;
     case Keyframes:
         delete static_cast<StyleRuleKeyframes*>(this);
         return;
     case HostInternal:
         delete static_cast<StyleRuleHost*>(this);
         return;
-#if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
         delete static_cast<StyleRuleViewport*>(this);
         return;
-#endif
     case Filter:
         delete static_cast<StyleRuleFilter*>(this);
         return;
     case Unknown:
     case Charset:
     case Keyframe:
         ASSERT_NOT_REACHED();
         return;
     }
     ASSERT_NOT_REACHED();
@@ skipping 15 matching lines @@
     case Region:
         return static_cast<const StyleRuleRegion*>(this)->copy();
     case Import:
         // FIXME: Copy import rules.
         ASSERT_NOT_REACHED();
         return 0;
     case Keyframes:
         return static_cast<const StyleRuleKeyframes*>(this)->copy();
     case HostInternal:
         return static_cast<const StyleRuleHost*>(this)->copy();
-#if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
         return static_cast<const StyleRuleViewport*>(this)->copy();
-#endif
     case Filter:
         return static_cast<const StyleRuleFilter*>(this)->copy();
     case Unknown:
     case Charset:
     case Keyframe:
         ASSERT_NOT_REACHED();
         return 0;
     }
     ASSERT_NOT_REACHED();
     return 0;
@@ skipping 21 matching lines @@
         break;
     case Region:
         rule = CSSRegionRule::create(static_cast<StyleRuleRegion*>(self), parentSheet);
         break;
     case Import:
         rule = CSSImportRule::create(static_cast<StyleRuleImport*>(self), parentSheet);
         break;
     case Keyframes:
         rule = CSSKeyframesRule::create(static_cast<StyleRuleKeyframes*>(self), parentSheet);
         break;
-#if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
-        rule = WebKitCSSViewportRule::create(static_cast<StyleRuleViewport*>(self), parentSheet);
+        rule = CSSViewportRule::create(static_cast<StyleRuleViewport*>(self), parentSheet);
         break;
-#endif
     case HostInternal:
         rule = CSSHostRule::create(static_cast<StyleRuleHost*>(self), parentSheet);
         break;
     case Filter:
         rule = CSSFilterRule::create(static_cast<StyleRuleFilter*>(self), parentSheet);
         break;
     case Unknown:
     case Charset:
     case Keyframe:
         ASSERT_NOT_REACHED();
@@ skipping 190 matching lines @@
 {
     ASSERT(RuntimeEnabledFeatures::cssRegionsEnabled());
 }
 
 void StyleRuleRegion::reportDescendantMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_selectorList, "selectorList");
 }
 
-#if ENABLE(CSS_DEVICE_ADAPTATION)
 StyleRuleViewport::StyleRuleViewport()
     : StyleRuleBase(Viewport, 0)
 {
+    ASSERT(RuntimeEnabledFeatures::cssViewportEnabled());
 }
 
 StyleRuleViewport::StyleRuleViewport(const StyleRuleViewport& o)
     : StyleRuleBase(o)
     , m_properties(o.m_properties->mutableCopy())
 {
+    ASSERT(RuntimeEnabledFeatures::cssViewportEnabled());
 }
 
 StyleRuleViewport::~StyleRuleViewport()
 {
 }
 
 MutableStylePropertySet* StyleRuleViewport::mutableProperties()
 {
     if (!m_properties->isMutable())
         m_properties = m_properties->mutableCopy();
     return static_cast<MutableStylePropertySet*>(m_properties.get());
 }
 
 void StyleRuleViewport::setProperties(PassRefPtr<StylePropertySet> properties)
 {
     m_properties = properties;
 }
 
 void StyleRuleViewport::reportDescendantMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_properties, "properties");
 }
-#endif // ENABLE(CSS_DEVICE_ADAPTATION)
 
 StyleRuleFilter::StyleRuleFilter(const String& filterName)
     : StyleRuleBase(Filter, 0)
     , m_filterName(filterName)
 {
 }
 
 StyleRuleFilter::StyleRuleFilter(const StyleRuleFilter& o)
     : StyleRuleBase(o)
     , m_filterName(o.m_filterName)
@@ skipping 18 matching lines @@
 }
 
 void StyleRuleFilter::reportDescendantMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_filterName);
     info.addMember(m_properties);
 }
 
 } // namespace WebCore