Use refs for GraphicsContext

third_party/WebKit/Source/core/paint/FileUploadControlPainter.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/FileUploadControlPainter.h"
 
 #include "core/layout/LayoutButton.h"
 #include "core/layout/LayoutFileUploadControl.h"
 #include "core/layout/TextRunConstructor.h"
@@ skipping 12 matching lines @@
         return;
 
     // Push a clip.
     Optional<ClipRecorder> clipRecorder;
     if (paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseChildBlockBackgrounds) {
         IntRect clipRect = enclosingIntRect(LayoutRect(
             LayoutPoint(paintOffset.x() + m_layoutFileUploadControl.borderLeft(), paintOffset.y() + m_layoutFileUploadControl.borderTop()),
             m_layoutFileUploadControl.size() + LayoutSize(0, -m_layoutFileUploadControl.borderWidth() + buttonShadowHeight)));
         if (clipRect.isEmpty())
             return;
-        clipRecorder.emplace(*paintInfo.context, m_layoutFileUploadControl, DisplayItem::ClipFileUploadControlRect, LayoutRect(clipRect));
+        clipRecorder.emplace(paintInfo.context, m_layoutFileUploadControl, DisplayItem::ClipFileUploadControlRect, LayoutRect(clipRect));
     }
 
-    if (paintInfo.phase == PaintPhaseForeground && !LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*paintInfo.context, m_layoutFileUploadControl, paintInfo.phase, paintOffset)) {
+    if (paintInfo.phase == PaintPhaseForeground && !LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutFileUploadControl, paintInfo.phase, paintOffset)) {
         const String& displayedFilename = m_layoutFileUploadControl.fileTextValue();
         const Font& font = m_layoutFileUploadControl.style()->font();
         TextRun textRun = constructTextRun(font, displayedFilename, m_layoutFileUploadControl.styleRef(), RespectDirection | RespectDirectionOverride);
         textRun.setExpansionBehavior(TextRun::AllowTrailingExpansion);
 
         // Determine where the filename should be placed
         LayoutUnit contentLeft = paintOffset.x() + m_layoutFileUploadControl.borderLeft() + m_layoutFileUploadControl.paddingLeft();
         Node* button = m_layoutFileUploadControl.uploadButton();
         if (!button)
             return;
@@ skipping 13 matching lines @@
         if (LayoutButton* buttonLayoutObject = toLayoutButton(button->layoutObject()))
             textY = paintOffset.y() + m_layoutFileUploadControl.borderTop() + m_layoutFileUploadControl.paddingTop() + buttonLayoutObject->baselinePosition(AlphabeticBaseline, true, HorizontalLine, PositionOnContainingLine);
         else
             textY = m_layoutFileUploadControl.baselinePosition(AlphabeticBaseline, true, HorizontalLine, PositionOnContainingLine);
         TextRunPaintInfo textRunPaintInfo(textRun);
         // FIXME: Shouldn't these offsets be rounded? crbug.com/350474
         textRunPaintInfo.bounds = FloatRect(textX.toFloat(), textY.toFloat() - m_layoutFileUploadControl.style()->fontMetrics().ascent(),
             textWidth, m_layoutFileUploadControl.style()->fontMetrics().height());
 
         // Draw the filename.
-        LayoutObjectDrawingRecorder recorder(*paintInfo.context, m_layoutFileUploadControl, paintInfo.phase, textRunPaintInfo.bounds, paintOffset);
-        paintInfo.context->setFillColor(m_layoutFileUploadControl.resolveColor(CSSPropertyColor));
-        paintInfo.context->drawBidiText(font, textRunPaintInfo, FloatPoint(roundToInt(textX), roundToInt(textY)));
+        LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutFileUploadControl, paintInfo.phase, textRunPaintInfo.bounds, paintOffset);
+        paintInfo.context.setFillColor(m_layoutFileUploadControl.resolveColor(CSSPropertyColor));
+        paintInfo.context.drawBidiText(font, textRunPaintInfo, FloatPoint(roundToInt(textX), roundToInt(textY)));
     }
 
     // Paint the children.
     m_layoutFileUploadControl.LayoutBlockFlow::paintObject(paintInfo, paintOffset);
 }
 
 } // namespace blink