Remove 'paginated line width' from RootInlineBox.

It was set but never used. Probably a relic from CSS regions support.

R=leviw@chromium.org

Review URL: https://codereview.chromium.org/716213002

git-svn-id: svn://svn.chromium.org/blink/trunk@185233 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/rendering/RenderBlockLineLayout.cpp

@@ -1051,7 +1051,6 @@ void RenderBlockFlow::linkToEndLineIfNeeded(LineLayoutState& layoutState)
             LayoutUnit blockLogicalHeight = logicalHeight();
             trailingFloatsLineBox->alignBoxesInBlockDirection(blockLogicalHeight, textBoxDataMap, verticalPositionCache);
             trailingFloatsLineBox->setLineTopBottomPositions(blockLogicalHeight, blockLogicalHeight, blockLogicalHeight, blockLogicalHeight);
-            trailingFloatsLineBox->setPaginatedLineWidth(availableLogicalWidthForContent());
             LayoutRect logicalLayoutOverflow(0, blockLogicalHeight, 1, bottomLayoutOverflow - blockLogicalHeight);
             LayoutRect logicalVisualOverflow(0, blockLogicalHeight, 1, bottomVisualOverflow - blockLogicalHeight);
             trailingFloatsLineBox->setOverflowFromLogicalRects(logicalLayoutOverflow, logicalVisualOverflow, trailingFloatsLineBox->lineTop(), trailingFloatsLineBox->lineBottom());

third_party/WebKit/Source/core/rendering/RootInlineBox.cpp

@@ -40,7 +40,7 @@ namespace blink {
 struct SameSizeAsRootInlineBox : public InlineFlowBox {
     unsigned unsignedVariable;
     void* pointers[3];
-    LayoutUnit layoutVariables[7];
+    LayoutUnit layoutVariables[6];
 };
 
 COMPILE_ASSERT(sizeof(RootInlineBox) == sizeof(SameSizeAsRootInlineBox), RootInlineBox_should_stay_small);
@@ -58,7 +58,6 @@ RootInlineBox::RootInlineBox(RenderBlockFlow& block)
     , m_lineBottomWithLeading(0)
     , m_selectionBottom(0)
     , m_paginationStrut(0)
-    , m_paginatedLineWidth(0)
 {
     setIsHorizontal(block.isHorizontalWritingMode());
 }
@@ -235,8 +234,6 @@ LayoutUnit RootInlineBox::alignBoxesInBlockDirection(LayoutUnit heightOfBlock, G
     maxHeight = std::max<LayoutUnit>(0, maxHeight); // FIXME: Is this really necessary?
 
     setLineTopBottomPositions(lineTop, lineBottom, heightOfBlock, heightOfBlock + maxHeight, selectionBottom);
-    if (block().view()->layoutState()->isPaginated())
-        setPaginatedLineWidth(block().availableLogicalWidthForContent());
 
     LayoutUnit annotationsAdjustment = beforeAnnotationsAdjustment();
     if (annotationsAdjustment) {

third_party/WebKit/Source/core/rendering/RootInlineBox.h

@@ -57,8 +57,6 @@ public:
     LayoutUnit paginationStrut() const { return m_paginationStrut; }
     void setPaginationStrut(LayoutUnit strut) { m_paginationStrut = strut; }
 
-    void setPaginatedLineWidth(LayoutUnit width) { m_paginatedLineWidth = width; }
-
     LayoutUnit selectionTop() const;
     LayoutUnit selectionBottom() const;
     LayoutUnit selectionHeight() const { return max<LayoutUnit>(0, selectionBottom() - selectionTop()); }
@@ -201,7 +199,6 @@ private:
     LayoutUnit m_lineBottomWithLeading;
     LayoutUnit m_selectionBottom;
     LayoutUnit m_paginationStrut;
-    LayoutUnit m_paginatedLineWidth;
 };
 
 } // namespace blink