Avoid duplicating the BleedAvoidanceIsClipping function in Blink paint

third_party/WebKit/Source/core/paint/BoxPainter.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/BoxPainter.h"
 
 #include "core/HTMLNames.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/layout/ImageQualityController.h"
@@ skipping 82 matching lines @@
     const LayoutPoint& adjusted_paint_offset) {
   LayoutRect bounds =
       IsPaintingBackgroundOfPaintContainerIntoScrollingContentsLayer(
           &layout_box_, paint_info)
           ? layout_box_.LayoutOverflowRect()
           : layout_box_.SelfVisualOverflowRect();
   bounds.MoveBy(adjusted_paint_offset);
   return bounds;
 }
 
-namespace {
-
-bool BleedAvoidanceIsClipping(BackgroundBleedAvoidance bleed_avoidance) {
-  return bleed_avoidance == kBackgroundBleedClipOnly ||
-         bleed_avoidance == kBackgroundBleedClipLayer;
-}
-
-}  // anonymous namespace
-
 void BoxPainter::PaintBoxDecorationBackgroundWithRect(
     const PaintInfo& paint_info,
     const LayoutPoint& paint_offset,
     const LayoutRect& paint_rect) {
   bool painting_overflow_contents =
       IsPaintingBackgroundOfPaintContainerIntoScrollingContentsLayer(
           &layout_box_, paint_info);
   const ComputedStyle& style = layout_box_.StyleRef();
 
   Optional<DisplayItemCacheSkipper> cache_skipper;
@@ skipping 944 matching lines @@
 bool BoxPainter::ShouldForceWhiteBackgroundForPrintEconomy(
     const ComputedStyle& style,
     const Document& document) {
   return document.Printing() &&
          style.PrintColorAdjust() == EPrintColorAdjust::kEconomy &&
          (!document.GetSettings() ||
           !document.GetSettings()->GetShouldPrintBackgrounds());
 }
 
 }  // namespace blink