Move code from StyleResolver to ViewportStyleResolver.

Source/core/css/CSSDefaultStyleSheets.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 56 matching lines @@
     RefPtrWillBeRawPtr<StyleSheetContents> sheet = StyleSheetContents::create(CSSParserContext(UASheetMode, 0));
     sheet->parseString(str);
     // User Agent stylesheets are parsed once for the lifetime of the renderer
     // and are intentionally leaked.
     WTF_ANNOTATE_LEAKING_OBJECT_PTR(sheet.get());
     return sheet.release();
 }
 
 CSSDefaultStyleSheets::CSSDefaultStyleSheets()
     : m_defaultStyle(nullptr)
-    , m_defaultViewportStyle(nullptr)
+    , m_defaultMobileViewportStyle(nullptr)
     , m_defaultQuirksStyle(nullptr)
     , m_defaultPrintStyle(nullptr)
     , m_defaultViewSourceStyle(nullptr)
     , m_defaultXHTMLMobileProfileStyle(nullptr)
     , m_defaultTransitionStyle(nullptr)
     , m_defaultStyleSheet(nullptr)
-    , m_viewportStyleSheet(nullptr)
+    , m_mobileViewportStyleSheet(nullptr)
     , m_quirksStyleSheet(nullptr)
     , m_svgStyleSheet(nullptr)
     , m_mathmlStyleSheet(nullptr)
     , m_mediaControlsStyleSheet(nullptr)
     , m_fullscreenStyleSheet(nullptr)
 {
     m_defaultStyle = RuleSet::create();
-    m_defaultViewportStyle = RuleSet::create();
     m_defaultPrintStyle = RuleSet::create();
     m_defaultQuirksStyle = RuleSet::create();
 
     // Strict-mode rules.
     String defaultRules = loadResourceAsASCIIString("html.css") + LayoutTheme::theme().extraDefaultStyleSheet();
     m_defaultStyleSheet = parseUASheet(defaultRules);
     m_defaultStyle->addRulesFromSheet(defaultStyleSheet(), screenEval());
-#if OS(ANDROID)
-    String viewportRules = loadResourceAsASCIIString("viewportAndroid.css");
-#else
-    String viewportRules;
-#endif
-    m_viewportStyleSheet = parseUASheet(viewportRules);
-    m_defaultViewportStyle->addRulesFromSheet(viewportStyleSheet(), screenEval());
     m_defaultPrintStyle->addRulesFromSheet(defaultStyleSheet(), printEval());
 
     // Quirks-mode rules.
     String quirksRules = loadResourceAsASCIIString("quirks.css") + LayoutTheme::theme().extraQuirksStyleSheet();
     m_quirksStyleSheet = parseUASheet(quirksRules);
     m_defaultQuirksStyle->addRulesFromSheet(quirksStyleSheet(), screenEval());
 }
 
 RuleSet* CSSDefaultStyleSheets::defaultViewSourceStyle()
 {
@@ skipping 21 matching lines @@
 {
     if (!m_defaultXHTMLMobileProfileStyle) {
         m_defaultXHTMLMobileProfileStyle = RuleSet::create();
         // Loaded stylesheet is leaked on purpose.
         RefPtrWillBeRawPtr<StyleSheetContents> stylesheet = parseUASheet(loadResourceAsASCIIString("xhtmlmp.css"));
         m_defaultXHTMLMobileProfileStyle->addRulesFromSheet(stylesheet.release().leakRef(), screenEval());
     }
     return m_defaultXHTMLMobileProfileStyle.get();
 }
 
+RuleSet* CSSDefaultStyleSheets::defaultMobileViewportStyle()
+{
+    if (!m_defaultMobileViewportStyle) {
+        m_defaultMobileViewportStyle = RuleSet::create();
+        m_mobileViewportStyleSheet = parseUASheet(loadResourceAsASCIIString("viewportAndroid.css"));
+        m_defaultMobileViewportStyle->addRulesFromSheet(m_mobileViewportStyleSheet.get(), screenEval());
+    }
+    return m_defaultMobileViewportStyle.get();
+}
+
 void CSSDefaultStyleSheets::ensureDefaultStyleSheetsForElement(Element* element, bool& changedDefaultStyle)
 {
     // FIXME: We should assert that the sheet only styles SVG elements.
     if (element->isSVGElement() && !m_svgStyleSheet) {
         m_svgStyleSheet = parseUASheet(loadResourceAsASCIIString("svg.css"));
         m_defaultStyle->addRulesFromSheet(svgStyleSheet(), screenEval());
         m_defaultPrintStyle->addRulesFromSheet(svgStyleSheet(), printEval());
         changedDefaultStyle = true;
     }
 
@@ skipping 25 matching lines @@
         changedDefaultStyle = true;
     }
 
     ASSERT(!m_defaultStyle->features().hasIdsInSelectors());
     ASSERT(m_defaultStyle->features().siblingRules.isEmpty());
 }
 
 DEFINE_TRACE(CSSDefaultStyleSheets)
 {
     visitor->trace(m_defaultStyle);
-    visitor->trace(m_defaultViewportStyle);
+    visitor->trace(m_defaultMobileViewportStyle);
     visitor->trace(m_defaultQuirksStyle);
     visitor->trace(m_defaultPrintStyle);
     visitor->trace(m_defaultViewSourceStyle);
     visitor->trace(m_defaultXHTMLMobileProfileStyle);
     visitor->trace(m_defaultTransitionStyle);
     visitor->trace(m_defaultStyleSheet);
-    visitor->trace(m_viewportStyleSheet);
     visitor->trace(m_quirksStyleSheet);
     visitor->trace(m_svgStyleSheet);
     visitor->trace(m_mathmlStyleSheet);
     visitor->trace(m_mediaControlsStyleSheet);
     visitor->trace(m_fullscreenStyleSheet);
 }
 
 } // namespace blink