Even more explicit LayoutUnit conversion

third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All right reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 415 matching lines @@
 }
 
 static inline void setLogicalWidthForTextRun(RootInlineBox* lineBox, BidiRun* run, LayoutText* layoutText, LayoutUnit xPos, const LineInfo& lineInfo,
     GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache, WordMeasurements& wordMeasurements)
 {
     HashSet<const SimpleFontData*> fallbackFonts;
     GlyphOverflow glyphOverflow;
 
     const Font& font = layoutText->style(lineInfo.isFirstLine())->font();
 
-    LayoutUnit hyphenWidth = 0;
+    LayoutUnit hyphenWidth;
     if (toInlineTextBox(run->m_box)->hasHyphen())
         hyphenWidth = layoutText->hyphenWidth(font, run->direction());
 
     float measuredWidth = 0;
     FloatRect glyphBounds;
 
     bool kerningIsEnabled = font.fontDescription().typesettingFeatures() & Kerning;
 
 #if OS(MACOSX)
     // FIXME: Having any font feature settings enabled can lead to selection gaps on
@@ skipping 458 matching lines @@
 
             bidiRuns.deleteRuns();
             resolver.markCurrentRunEmpty(); // FIXME: This can probably be replaced by an ASSERT (or just removed).
 
             if (lineBox) {
                 lineBox->setLineBreakInfo(endOfLine.object(), endOfLine.offset(), resolver.status());
                 if (layoutState.usesPaintInvalidationBounds())
                     layoutState.updatePaintInvalidationRangeFromBox(lineBox);
 
                 if (paginated) {
-                    LayoutUnit adjustment = 0;
+                    LayoutUnit adjustment;
                     adjustLinePositionForPagination(*lineBox, adjustment);
                     if (adjustment) {
                         LayoutUnit oldLineWidth = availableLogicalWidthForLine(oldLogicalHeight, layoutState.lineInfo().isFirstLine() ? IndentText : DoNotIndentText);
                         lineBox->moveInBlockDirection(adjustment);
                         if (layoutState.usesPaintInvalidationBounds())
                             layoutState.updatePaintInvalidationRangeFromBox(lineBox);
 
                         if (availableLogicalWidthForLine(oldLogicalHeight + adjustment, layoutState.lineInfo().isFirstLine() ? IndentText: DoNotIndentText) != oldLineWidth) {
                             // We have to delete this line, remove all floats that got added, and let line layout re-run.
                             lineBox->deleteLine();
@@ skipping 707 matching lines @@
 RootInlineBox* LayoutBlockFlow::determineStartPosition(LineLayoutState& layoutState, InlineBidiResolver& resolver)
 {
     RootInlineBox* curr = nullptr;
     RootInlineBox* last = nullptr;
     RootInlineBox* firstLineBoxWithBreakAndClearance = 0;
 
     // FIXME: This entire float-checking block needs to be broken into a new function.
     if (!layoutState.isFullLayout()) {
         // Paginate all of the clean lines.
         bool paginated = view()->layoutState() && view()->layoutState()->isPaginated();
-        LayoutUnit paginationDelta = 0;
+        LayoutUnit paginationDelta;
         for (curr = firstRootBox(); curr && !curr->isDirty(); curr = curr->nextRootBox()) {
             if (paginated) {
                 paginationDelta -= curr->paginationStrut();
                 adjustLinePositionForPagination(*curr, paginationDelta);
                 if (paginationDelta) {
                     if (containsFloats() || !layoutState.floats().isEmpty()) {
                         // FIXME: Do better eventually.  For now if we ever shift because of pagination and floats are present just go to a full layout.
                         layoutState.markForFullLayout();
                         break;
                     }
@@ skipping 453 matching lines @@
     if (!line || !line->isFirstLineStyle())
         return reason;
     // It's the RootInlineBox that paints the ::first-line background. Note that since it may be
     // expensive to figure out if the first line is affected by any ::first-line selectors at all,
     // we just invalidate it unconditionally, since that's typically cheaper.
     invalidateDisplayItemClient(*line);
     return reason;
 }
 
 } // namespace blink