Even more explicit LayoutUnit conversion

third_party/WebKit/Source/core/paint/InlineTextBoxPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/InlineTextBoxPainter.h"
 
 #include "core/editing/CompositionUnderline.h"
 #include "core/editing/Editor.h"
 #include "core/editing/markers/DocumentMarkerController.h"
 #include "core/editing/markers/RenderedDocumentMarker.h"
@@ skipping 364 matching lines @@
 
 void InlineTextBoxPainter::paintDocumentMarker(GraphicsContext& context, const LayoutPoint& boxOrigin, DocumentMarker* marker, const ComputedStyle& style, const Font& font, bool grammar)
 {
     // Never print spelling/grammar markers (5327887)
     if (m_inlineTextBox.lineLayoutItem().document().printing())
         return;
 
     if (m_inlineTextBox.truncation() == cFullTruncation)
         return;
 
-    LayoutUnit start = 0; // start of line to draw, relative to tx
+    LayoutUnit start; // start of line to draw, relative to tx
     LayoutUnit width = m_inlineTextBox.logicalWidth(); // how much line to draw
 
     // Determine whether we need to measure text
     bool markerSpansWholeBox = true;
     if (m_inlineTextBox.start() <= marker->startOffset())
         markerSpansWholeBox = false;
     if ((m_inlineTextBox.end() + 1) != marker->endOffset()) // end points at the last char, not past it
         markerSpansWholeBox = false;
     if (m_inlineTextBox.truncation() != cNoTruncation)
         markerSpansWholeBox = false;
@@ skipping 471 matching lines @@
 
     Color color = LayoutTheme::theme().platformTextSearchHighlightColor(marker->activeMatch());
     GraphicsContext& context = paintInfo.context;
     GraphicsContextStateSaver stateSaver(context);
     context.clip(FloatRect(boxOrigin.x().toFloat(), (boxOrigin.y() - deltaY).toFloat(), m_inlineTextBox.logicalWidth().toFloat(), selHeight));
     context.drawHighlightForText(font, run, FloatPoint(boxOrigin.x().toFloat(), (boxOrigin.y() - deltaY).toFloat()), selHeight, color, sPos, ePos);
 }
 
 
 } // namespace blink