Set caret width based on device scale factor

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

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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
@@ skipping 747 matching lines @@
   if (!styleToUse->font().primaryFont())
     return LayoutRect();
 
   int height = styleToUse->font().primaryFont()->getFontMetrics().height();
   int top = caretBox->logicalTop().toInt();
 
   // Go ahead and round left to snap it to the nearest pixel.
   LayoutUnit left = box->positionForOffset(caretOffset);
 
   // Distribute the caret's width to either side of the offset.
-  LayoutUnit caretWidthLeftOfOffset = caretWidth() / 2;
+  LayoutUnit caretWidthLeftOfOffset =
+      caretWidth(frameView()->getHostWindow()) / 2;

[oshima, 2017/02/10 19:55:16]

ditto

[malaykeshav, 2017/02/10 21:00:54]

Done

   left -= caretWidthLeftOfOffset;
-  LayoutUnit caretWidthRightOfOffset = caretWidth() - caretWidthLeftOfOffset;
+  LayoutUnit caretWidthRightOfOffset =
+      caretWidth(frameView()->getHostWindow()) - caretWidthLeftOfOffset;
 
   left = LayoutUnit(left.round());
 
   LayoutUnit rootLeft = box->root().logicalLeft();
   LayoutUnit rootRight = box->root().logicalRight();
 
   // FIXME: should we use the width of the root inline box or the
   // width of the containing block for this?
   if (extraWidthToEndOfLine)
     *extraWidthToEndOfLine =
@@ skipping 29 matching lines @@
 
   // for unicode-bidi: plaintext, use inlineBoxBidiLevel() to test the correct
   // direction for the cursor.
   if (rightAligned && style()->getUnicodeBidi() == UnicodeBidi::kPlaintext) {
     if (inlineBox->bidiLevel() % 2 != 1)
       rightAligned = false;
   }
 
   if (rightAligned) {
     left = std::max(left, leftEdge);
-    left = std::min(left, rootRight - caretWidth());
+    left = std::min(left, rootRight - caretWidth(frameView()->getHostWindow()));
   } else {
     left = std::min(left, rightEdge - caretWidthRightOfOffset);
     left = std::max(left, rootLeft);
   }
 
   return LayoutRect(
       style()->isHorizontalWritingMode()
-          ? IntRect(left.toInt(), top, caretWidth().toInt(), height)
-          : IntRect(top, left.toInt(), height, caretWidth().toInt()));
+          ? IntRect(left.toInt(), top,
+                    caretWidth(frameView()->getHostWindow()).toInt(), height)
+          : IntRect(top, left.toInt(), height,
+                    caretWidth(frameView()->getHostWindow()).toInt()));
 }
 
 ALWAYS_INLINE float LayoutText::widthFromFont(
     const Font& f,
     int start,
     int len,
     float leadWidth,
     float textWidthSoFar,
     TextDirection textDirection,
     HashSet<const SimpleFontData*>* fallbackFonts,
@@ skipping 1179 matching lines @@
   LayoutRect rect = LayoutRect(
       IntRect(firstRunX(), firstRunY(), linesBox.width(), linesBox.height()));
   LayoutBlock* block = containingBlock();
   if (block && hasTextBoxes())
     block->adjustChildDebugRect(rect);
 
   return rect;
 }
 
 }  // namespace blink