Fix the painting of document markers under zoom and variable DPI

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/frame/LocalFrame.h"
@@ skipping 946 matching lines @@
     // Place the underline at the very bottom of the text in small/medium fonts.
     underlineOffset = (m_inlineTextBox.logicalHeight() - lineThickness).toInt();
   } else {
     // In larger fonts, though, place the underline up near the baseline to
     // prevent a big gap.
     underlineOffset = baseline + 2;
   }
   context.drawLineForDocumentMarker(
       FloatPoint((boxOrigin.x() + start).toFloat(),
                  (boxOrigin.y() + underlineOffset).toFloat()),
-      width.toFloat(), lineStyleForMarkerType(marker.type()));
+      width.toFloat(), lineStyleForMarkerType(marker.type()),
+      style.effectiveZoom());
 }
 
 template <InlineTextBoxPainter::PaintOptions options>
 void InlineTextBoxPainter::paintSelection(GraphicsContext& context,
                                           const LayoutRect& boxRect,
                                           const ComputedStyle& style,
                                           const Font& font,
                                           Color textColor,
                                           LayoutTextCombine* combinedText) {
   // See if we have a selection to paint at all.
@@ skipping 350 matching lines @@
 
   LayoutRect boxRect(boxOrigin, LayoutSize(m_inlineTextBox.logicalWidth(),
                                            m_inlineTextBox.logicalHeight()));
   context.clip(FloatRect(boxRect));
   context.drawHighlightForText(font, run, FloatPoint(boxOrigin),
                                boxRect.height().toInt(), color,
                                paintOffsets.first, paintOffsets.second);
 }
 
 }  // namespace blink