Move viewport unit resolution to style recalc time

Source/core/rendering/RenderFlexibleBox.cpp

 /*
  * Copyright (C) 2011 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 796 matching lines @@
 }
 
 LayoutUnit RenderFlexibleBox::marginBoxAscentForChild(RenderBox* child)
 {
     LayoutUnit ascent = child->firstLineBoxBaseline();
     if (ascent == -1)
         ascent = crossAxisExtentForChild(child);
     return ascent + flowAwareMarginBeforeForChild(child);
 }
 
-LayoutUnit RenderFlexibleBox::computeChildMarginValue(Length margin, RenderView* view)
+LayoutUnit RenderFlexibleBox::computeChildMarginValue(Length margin)
 {
     // When resolving the margins, we use the content size for resolving percent and calc (for percents in calc expressions) margins.
     // Fortunately, percent margins are always computed with respect to the block's width, even for margin-top and margin-bottom.
     LayoutUnit availableSize = contentLogicalWidth();
-    return minimumValueForLength(margin, availableSize, view);
+    return minimumValueForLength(margin, availableSize);
 }
 
 void RenderFlexibleBox::prepareOrderIteratorAndMargins()
 {
-    RenderView* renderView = view();
     OrderIteratorPopulator populator(m_orderIterator);
 
     for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) {
         populator.collectChild(child);
 
         if (child->isOutOfFlowPositioned())
             continue;
 
         // Before running the flex algorithm, 'auto' has a margin of 0.
         // Also, if we're not auto sizing, we don't do a layout that computes the start/end margins.
         if (isHorizontalFlow()) {
-            child->setMarginLeft(computeChildMarginValue(child->style()->marginLeft(), renderView));
-            child->setMarginRight(computeChildMarginValue(child->style()->marginRight(), renderView));
+            child->setMarginLeft(computeChildMarginValue(child->style()->marginLeft()));
+            child->setMarginRight(computeChildMarginValue(child->style()->marginRight()));
         } else {
-            child->setMarginTop(computeChildMarginValue(child->style()->marginTop(), renderView));
-            child->setMarginBottom(computeChildMarginValue(child->style()->marginBottom(), renderView));
+            child->setMarginTop(computeChildMarginValue(child->style()->marginTop()));
+            child->setMarginBottom(computeChildMarginValue(child->style()->marginBottom()));
         }
     }
 }
 
 LayoutUnit RenderFlexibleBox::adjustChildSizeForMinAndMax(RenderBox* child, LayoutUnit childSize)
 {
     Length max = isHorizontalFlow() ? child->style()->maxWidth() : child->style()->maxHeight();
     if (max.isSpecifiedOrIntrinsic()) {
         LayoutUnit maxExtent = computeMainAxisExtentForChild(child, MaxSize, max);
         if (maxExtent != -1 && childSize > maxExtent)
@@ skipping 512 matching lines @@
             ASSERT(child);
             LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisExtent;
             LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset - crossAxisStartEdge;
             LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxisExtent;
             adjustAlignmentForChild(child, newOffset - originalOffset);
         }
     }
 }
 
 }