ViewPainter should skip background in print economy mode

Source/core/paint/TextPainter.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 "config.h"
 #include "core/paint/TextPainter.h"
 
 #include "core/CSSPropertyNames.h"
 #include "core/frame/Settings.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTextCombine.h"
 #include "core/layout/line/InlineTextBox.h"
+#include "core/paint/BoxPainter.h"
 #include "core/style/ComputedStyle.h"
 #include "core/style/ShadowList.h"
 #include "platform/fonts/Font.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsContextStateSaver.h"
 #include "platform/text/TextRun.h"
 #include "wtf/Assertions.h"
 #include "wtf/unicode/CharacterNames.h"
 
 namespace blink {
@@ skipping 105 matching lines @@
         textStyle.shadow = 0;
     } else {
         textStyle.currentColor = style.visitedDependentColor(CSSPropertyColor);
         textStyle.fillColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextFillColor);
         textStyle.strokeColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextStrokeColor);
         textStyle.emphasisMarkColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextEmphasisColor);
         textStyle.strokeWidth = style.textStrokeWidth();
         textStyle.shadow = style.textShadow();
 
         // Adjust text color when printing with a white background.
-        bool forceBackgroundToWhite = false;
-        if (isPrinting) {
-            if (style.printColorAdjust() == PrintColorAdjustEconomy)
-                forceBackgroundToWhite = true;
-            if (layoutObject.document().settings() && layoutObject.document().settings()->shouldPrintBackgrounds())
-                forceBackgroundToWhite = false;
-        }
+        ASSERT(layoutObject.document().printing() == isPrinting);
+        bool forceBackgroundToWhite = BoxPainter::shouldForceWhiteBackgroundForPrintEconomy(style, layoutObject.document());
         if (forceBackgroundToWhite) {
             textStyle.fillColor = textColorForWhiteBackground(textStyle.fillColor);
             textStyle.strokeColor = textColorForWhiteBackground(textStyle.strokeColor);
             textStyle.emphasisMarkColor = textColorForWhiteBackground(textStyle.emphasisMarkColor);
         }
 
         // Text shadows are disabled when printing. http://crbug.com/258321
         if (isPrinting)
             textStyle.shadow = 0;
     }
@@ skipping 66 matching lines @@
     DEFINE_STATIC_LOCAL(TextRun, placeholderTextRun, (&ideographicFullStopCharacter, 1));
     FloatPoint emphasisMarkTextOrigin(m_textBounds.x().toFloat(), m_textBounds.y().toFloat() + m_font.fontMetrics().ascent() + m_emphasisMarkOffset);
     TextRunPaintInfo textRunPaintInfo(placeholderTextRun);
     textRunPaintInfo.bounds = m_textBounds;
     m_graphicsContext->concatCTM(rotation(m_textBounds, Clockwise));
     m_graphicsContext->drawEmphasisMarks(m_combinedText->originalFont(), textRunPaintInfo, m_emphasisMark, emphasisMarkTextOrigin);
     m_graphicsContext->concatCTM(rotation(m_textBounds, Counterclockwise));
 }
 
 } // namespace blink