Migrate WTF::LinkedHashSet/ListHashSet::last() to ::back()

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 965 matching lines @@
     boxToDelete = next;
   }
 }
 
 void LayoutBlockFlow::layoutRunsAndFloats(LineLayoutState& layoutState) {
   // We want to skip ahead to the first dirty line
   InlineBidiResolver resolver;
   RootInlineBox* startLine = determineStartPosition(layoutState, resolver);
 
   if (containsFloats())
-    layoutState.setLastFloat(m_floatingObjects->set().last().get());
+    layoutState.setLastFloat(m_floatingObjects->set().back().get());
 
   // We also find the first clean line and extract these lines.  We will add
   // them back if we determine that we're able to synchronize after handling all
   // our dirty lines.
   InlineIterator cleanLineStart;
   BidiStatus cleanLineBidiStatus;
   if (!layoutState.isFullLayout() && startLine)
     determineEndPosition(layoutState, startLine, cleanLineStart,
                          cleanLineBidiStatus);
 
@@ skipping 57 matching lines @@
     // If a float's geometry has changed, give up on syncing with clean lines.
     if (layoutState.floats()[layoutState.floatIndex()].rect !=
         floatingObject.frameRect()) {
       // Delete all the remaining lines.
       deleteLineRange(layoutState, layoutState.endLine());
       layoutState.setEndLine(nullptr);
     }
     layoutState.setFloatIndex(layoutState.floatIndex() + 1);
   }
   layoutState.setLastFloat(
-      !floatingObjectSet.isEmpty() ? floatingObjectSet.last().get() : 0);
+      !floatingObjectSet.isEmpty() ? floatingObjectSet.back().get() : 0);
 }
 
 void LayoutBlockFlow::layoutRunsAndFloatsInRange(
     LineLayoutState& layoutState,
     InlineBidiResolver& resolver,
     const InlineIterator& cleanLineStart,
     const BidiStatus& cleanLineBidiStatus) {
   const ComputedStyle& styleToUse = styleRef();
   bool paginated =
       view()->layoutState() && view()->layoutState()->isPaginated();
@@ skipping 29 matching lines @@
     }
 
     lineMidpointState.reset();
 
     layoutState.lineInfo().setEmpty(true);
     layoutState.lineInfo().resetRunsFromLeadingWhitespace();
 
     const InlineIterator previousEndofLine = endOfLine;
     bool isNewUBAParagraph = layoutState.lineInfo().previousLineBrokeCleanly();
     FloatingObject* lastFloatFromPreviousLine =
-        (containsFloats()) ? m_floatingObjects->set().last().get() : 0;
+        (containsFloats()) ? m_floatingObjects->set().back().get() : 0;
 
     WordMeasurements wordMeasurements;
     endOfLine = lineBreaker.nextLineBreak(resolver, layoutState.lineInfo(),
                                           layoutTextInfo, wordMeasurements);
     layoutTextInfo.m_lineBreakIterator.resetPriorContext();
     if (resolver.position().atEnd()) {
       // FIXME: We shouldn't be creating any runs in nextLineBreak to begin
       // with! Once BidiRunList is separated from BidiResolver this will not be
       // needed.
       resolver.runs().deleteRuns();
@@ skipping 1460 matching lines @@
 
 bool LayoutBlockFlow::paintedOutputOfObjectHasNoEffectRegardlessOfSize() const {
   // LayoutBlockFlow is in charge of paint invalidation of the first line.
   if (firstLineBox())
     return false;
 
   return LayoutBlock::paintedOutputOfObjectHasNoEffectRegardlessOfSize();
 }
 
 }  // namespace blink