Remove MathML (part 3 of many)

Source/core/rendering/mathml/RenderMathMLBlock.cpp

Index: Source/core/rendering/mathml/RenderMathMLBlock.cpp
diff --git a/Source/core/rendering/mathml/RenderMathMLBlock.cpp b/Source/core/rendering/mathml/RenderMathMLBlock.cpp
deleted file mode 100644
index ea4aab6767d85071ef0861220ef2e54d8420f2a3..0000000000000000000000000000000000000000
--- a/Source/core/rendering/mathml/RenderMathMLBlock.cpp
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Copyright (C) 2009 Alex Milowski (alex@milowski.com). All rights reserved.
- * Copyright (C) 2012 David Barton (dbarton@mathscribe.com). 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.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * 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 "config.h"
-
-#if ENABLE(MATHML)
-
-#include "core/rendering/mathml/RenderMathMLBlock.h"
-
-#include "MathMLNames.h"
-#include "core/platform/graphics/GraphicsContext.h"
-#include "core/rendering/RenderView.h"
-
-namespace WebCore {
-    
-using namespace MathMLNames;
-    
-RenderMathMLBlock::RenderMathMLBlock(Element* container)
-    : RenderFlexibleBox(container)
-    , m_ignoreInAccessibilityTree(false)
-    , m_preferredLogicalHeight(preferredLogicalHeightUnset)
-{
-}
-
-bool RenderMathMLBlock::isChildAllowed(RenderObject* child, RenderStyle*) const
-{
-    return child->node() && child->node()->nodeType() == Node::ELEMENT_NODE;
-}
-
-void RenderMathMLBlock::computePreferredLogicalWidths()
-{
-    ASSERT(preferredLogicalWidthsDirty());
-    m_preferredLogicalHeight = preferredLogicalHeightUnset;
-    RenderFlexibleBox::computePreferredLogicalWidths();
-}
-
-RenderMathMLBlock* RenderMathMLBlock::createAnonymousMathMLBlock(EDisplay display)
-{
-    RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(style(), display);
-    RenderMathMLBlock* newBlock = new (renderArena()) RenderMathMLBlock(0);
-    newBlock->setDocumentForAnonymous(document());
-    newBlock->setStyle(newStyle.release());
-    return newBlock;
-}
-
-// An arbitrary large value, like RenderBlock.cpp BLOCK_MAX_WIDTH or FixedTableLayout.cpp TABLE_MAX_WIDTH.
-static const int cLargeLogicalWidth = 15000;
-
-void RenderMathMLBlock::computeChildrenPreferredLogicalHeights()
-{
-    ASSERT(needsLayout());
-
-    // This is ugly, but disable fragmentation when computing the preferred heights.
-    FragmentationDisabler fragmentationDisabler(this);
-
-    // Ensure a full repaint will happen after layout finishes.
-    setNeedsLayout(true, MarkOnlyThis);
-
-    RenderView* renderView = view();
-    bool hadLayoutState = renderView->layoutState();
-    if (!hadLayoutState)
-        renderView->pushLayoutState(this);
-    {
-        LayoutStateDisabler layoutStateDisabler(renderView);
-        
-        LayoutUnit oldAvailableLogicalWidth = availableLogicalWidth();
-        setLogicalWidth(cLargeLogicalWidth);
-        
-        for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
-            if (!child->isBox())
-                continue;
-            
-            // Because our width changed, |child| may need layout.
-            if (child->maxPreferredLogicalWidth() > oldAvailableLogicalWidth)
-                child->setNeedsLayout(true, MarkOnlyThis);
-            
-            RenderMathMLBlock* childMathMLBlock = child->isRenderMathMLBlock() ? toRenderMathMLBlock(child) : 0;
-            if (childMathMLBlock && !childMathMLBlock->isPreferredLogicalHeightDirty())
-                continue;
-            // Layout our child to compute its preferred logical height.
-            child->layoutIfNeeded();
-            if (childMathMLBlock)
-                childMathMLBlock->setPreferredLogicalHeight(childMathMLBlock->logicalHeight());
-        }
-    }
-    if (!hadLayoutState)
-        renderView->popLayoutState(this);
-}
-
-LayoutUnit RenderMathMLBlock::preferredLogicalHeightAfterSizing(RenderObject* child)
-{
-    if (child->isRenderMathMLBlock())
-        return toRenderMathMLBlock(child)->preferredLogicalHeight();
-    if (child->isBox()) {
-        ASSERT(!child->needsLayout());
-        return toRenderBox(child)->logicalHeight();
-    }
-    // This currently ignores -webkit-line-box-contain:
-    return child->style()->fontSize();
-}
-
-int RenderMathMLBlock::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const
-{
-    // mathml.css sets math { -webkit-line-box-contain: glyphs replaced; line-height: 0; }, so when linePositionMode == PositionOfInteriorLineBoxes we want to
-    // return 0 here to match our line-height. This matters when RootInlineBox::ascentAndDescentForBox is called on a RootInlineBox for an inline-block.
-    if (linePositionMode == PositionOfInteriorLineBoxes)
-        return 0;
-    
-    LayoutUnit baseline = firstLineBoxBaseline(); // FIXME: This may be unnecessary after flex baselines are implemented (https://bugs.webkit.org/show_bug.cgi?id=96188).
-    if (baseline != -1)
-        return baseline;
-    
-    return RenderFlexibleBox::baselinePosition(baselineType, firstLine, direction, linePositionMode);
-}
-
-const char* RenderMathMLBlock::renderName() const
-{
-    EDisplay display = style()->display();
-    if (display == FLEX)
-        return isAnonymous() ? "RenderMathMLBlock (anonymous, flex)" : "RenderMathMLBlock (flex)";
-    if (display == INLINE_FLEX)
-        return isAnonymous() ? "RenderMathMLBlock (anonymous, inline-flex)" : "RenderMathMLBlock (inline-flex)";
-    // |display| should be one of the above.
-    ASSERT_NOT_REACHED();
-    return isAnonymous() ? "RenderMathMLBlock (anonymous)" : "RenderMathMLBlock";
-}
-
-int RenderMathMLTable::firstLineBoxBaseline() const
-{
-    // In legal MathML, we'll have a MathML parent. That RenderFlexibleBox parent will use our firstLineBoxBaseline() for baseline alignment, per
-    // http://dev.w3.org/csswg/css3-flexbox/#flex-baselines. We want to vertically center an <mtable>, such as a matrix. Essentially the whole <mtable> element fits on a
-    // single line, whose baseline gives this centering. This is different than RenderTable::firstLineBoxBaseline, which returns the baseline of the first row of a <table>.
-    return (logicalHeight() + style()->fontMetrics().xHeight()) / 2;
-}
-
-}    
-
-#endif