[Layout API] Use Document::layoutViewItem() in ViewportStyleResolver

third_party/WebKit/Source/core/css/CSSToLengthConversionData.cpp

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/css/CSSToLengthConversionData.h"
 
 #include "core/css/CSSHelper.h"
-#include "core/layout/LayoutView.h"
+#include "core/layout/api/LayoutViewItem.h"
 #include "core/style/ComputedStyle.h"
 
 namespace blink {
 
 CSSToLengthConversionData::FontSizes::FontSizes(float em, float rem, const Font* font)
     : m_em(em)
     , m_rem(rem)
     , m_font(font)
 {
     // FIXME: Improve RAII of StyleResolverState to use const Font&.
@@ skipping 15 matching lines @@
         return m_em / 2.0f;
     return m_font->getFontMetrics().xHeight();
 }
 
 float CSSToLengthConversionData::FontSizes::ch() const
 {
     ASSERT(m_font);
     return m_font->getFontMetrics().zeroWidth();
 }
 
-CSSToLengthConversionData::ViewportSize::ViewportSize(const LayoutView* layoutView)
-    : m_size(layoutView ? layoutView->viewportSizeForViewportUnits() : DoubleSize())
+CSSToLengthConversionData::ViewportSize::ViewportSize(const LayoutViewItem& layoutViewItem)
+    : m_size(!layoutViewItem.isNull() ? layoutViewItem.viewportSizeForViewportUnits() : DoubleSize())
 {
 }
 
 CSSToLengthConversionData::CSSToLengthConversionData(const ComputedStyle* style, const FontSizes& fontSizes, const ViewportSize& viewportSize, float zoom)
     : m_style(style)
     , m_fontSizes(fontSizes)
     , m_viewportSize(viewportSize)
     , m_zoom(clampTo<float>(zoom, std::numeric_limits<float>::denorm_min()))
 {
     ASSERT(m_style);
 }
 
-CSSToLengthConversionData::CSSToLengthConversionData(const ComputedStyle* style, const ComputedStyle* rootStyle, const LayoutView* layoutView, float zoom)
-    : CSSToLengthConversionData(style, FontSizes(style, rootStyle), ViewportSize(layoutView), zoom)
+CSSToLengthConversionData::CSSToLengthConversionData(const ComputedStyle* style, const ComputedStyle* rootStyle, const LayoutViewItem& layoutViewItem, float zoom)
+    : CSSToLengthConversionData(style, FontSizes(style, rootStyle), ViewportSize(layoutViewItem), zoom)
 {
 }
 
 double CSSToLengthConversionData::viewportWidthPercent() const
 {
     m_style->setHasViewportUnits();
     return m_viewportSize.width() / 100;
 }
 double CSSToLengthConversionData::viewportHeightPercent() const
 {
@@ skipping 70 matching lines @@
     case CSSPrimitiveValue::UnitType::Chs:
         return value * chFontSize();
 
     default:
         ASSERT_NOT_REACHED();
         return 0;
     }
 }
 
 } // namespace blink