Set caret width based on device scale factor

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 4532 matching lines @@
 
 LayoutRect LayoutBox::localCaretRect(InlineBox* box,
                                      int caretOffset,
                                      LayoutUnit* extraWidthToEndOfLine) {
   // VisiblePositions at offsets inside containers either a) refer to the
   // positions before/after those containers (tables and select elements) or
   // b) refer to the position inside an empty block.
   // They never refer to children.
   // FIXME: Paint the carets inside empty blocks differently than the carets
   // before/after elements.
-
-  LayoutRect rect(location(), LayoutSize(caretWidth(), size().height()));
+  LayoutUnit caretWidth = frameView()->caretWidth();
+  LayoutRect rect(location(), LayoutSize(caretWidth, size().height()));
   bool ltr =
       box ? box->isLeftToRightDirection() : style()->isLeftToRightDirection();
 
   if ((!caretOffset) ^ ltr)
-    rect.move(LayoutSize(size().width() - caretWidth(), LayoutUnit()));
+    rect.move(LayoutSize(size().width() - caretWidth, LayoutUnit()));
 
   if (box) {
     RootInlineBox& rootBox = box->root();
     LayoutUnit top = rootBox.lineTop();
     rect.setY(top);
     rect.setHeight(rootBox.lineBottom() - top);
   }
 
   // If height of box is smaller than font height, use the latter one,
   // otherwise the caret might become invisible.
@@ skipping 1144 matching lines @@
     block->adjustChildDebugRect(rect);
 
   return rect;
 }
 
 bool LayoutBox::shouldClipOverflow() const {
   return hasOverflowClip() || styleRef().containsPaint() || hasControlClip();
 }
 
 }  // namespace blink