Scale focus outline thickness with zoom level.

third_party/WebKit/Source/core/paint/ObjectPainter.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/ObjectPainter.h"
 
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTheme.h"
@@ skipping 255 matching lines @@
 
   IntRect unitedOutlineRect = unionRectEvenIfEmpty(pixelSnappedOutlineRects);
   IntRect bounds = unitedOutlineRect;
   bounds.inflate(m_layoutObject.styleRef().outlineOutsetExtent());
   LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutObject,
                                        paintInfo.phase, bounds);
 
   Color color =
       m_layoutObject.resolveColor(styleToUse, CSSPropertyOutlineColor);
   if (styleToUse.outlineStyleIsAuto()) {
-    paintInfo.context.drawFocusRing(pixelSnappedOutlineRects,
-                                    styleToUse.outlineWidth(),
-                                    styleToUse.outlineOffset(), color);
+    paintInfo.context.drawFocusRing(
+        pixelSnappedOutlineRects,
+        styleToUse.getOutlineStrokeWidthForFocusRing(),
+        styleToUse.outlineOffset(), color);
     return;
   }
 
   if (unitedOutlineRect == pixelSnappedOutlineRects[0]) {
     paintSingleRectangleOutline(paintInfo, unitedOutlineRect, styleToUse,
                                 color);
     return;
   }
   paintComplexOutline(paintInfo.context, pixelSnappedOutlineRects, styleToUse,
                       color);
@@ skipping 460 matching lines @@
   m_layoutObject.paint(info, paintOffset);
   info.phase = PaintPhaseFloat;
   m_layoutObject.paint(info, paintOffset);
   info.phase = PaintPhaseForeground;
   m_layoutObject.paint(info, paintOffset);
   info.phase = PaintPhaseOutline;
   m_layoutObject.paint(info, paintOffset);
 }
 
 }  // namespace blink