Implement interfaces in PaintInfo and make it a class.

Source/core/rendering/RenderFileUploadControl.cpp

Index: Source/core/rendering/RenderFileUploadControl.cpp
diff --git a/Source/core/rendering/RenderFileUploadControl.cpp b/Source/core/rendering/RenderFileUploadControl.cpp
index 7228e4b35144fd7819f060dccd8e97ec6fa3cdb5..4f0465984b22f2ce7481521ac00e2f7aa0e2e70e 100644
--- a/Source/core/rendering/RenderFileUploadControl.cpp
+++ b/Source/core/rendering/RenderFileUploadControl.cpp
@@ -98,17 +98,17 @@ void RenderFileUploadControl::paintObject(PaintInfo& paintInfo, const LayoutPoin
         return;
 
     // Push a clip.
-    GraphicsContextStateSaver stateSaver(*paintInfo.context, false);
-    if (paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseChildBlockBackgrounds) {
+    GraphicsContextStateSaver stateSaver(*(paintInfo.getContext()), false);
+    if (paintInfo.getPhase() == PaintPhaseForeground || paintInfo.getPhase() == PaintPhaseChildBlockBackgrounds) {
         IntRect clipRect = enclosingIntRect(LayoutRect(paintOffset.x() + borderLeft(), paintOffset.y() + borderTop(),
                          width() - borderLeft() - borderRight(), height() - borderBottom() - borderTop() + buttonShadowHeight));
         if (clipRect.isEmpty())
             return;
         stateSaver.save();
-        paintInfo.context->clip(clipRect);
+        paintInfo.getContext()->clip(clipRect);
     }
 
-    if (paintInfo.phase == PaintPhaseForeground) {
+    if (paintInfo.getPhase() == PaintPhaseForeground) {
         const String& displayedFilename = fileTextValue();
         const Font& font = style()->font();
         TextRun textRun = constructTextRun(this, font, displayedFilename, style(), TextRun::AllowTrailingExpansion, RespectDirection | RespectDirectionOverride);
@@ -143,10 +143,10 @@ void RenderFileUploadControl::paintObject(PaintInfo& paintInfo, const LayoutPoin
                                             textWidth,
                                             style()->fontMetrics().height());
 
-        paintInfo.context->setFillColor(resolveColor(CSSPropertyColor));
+        paintInfo.getContext()->setFillColor(resolveColor(CSSPropertyColor));
 
         // Draw the filename
-        paintInfo.context->drawBidiText(font, textRunPaintInfo, IntPoint(roundToInt(textX), roundToInt(textY)));
+        paintInfo.getContext()->drawBidiText(font, textRunPaintInfo, IntPoint(roundToInt(textX), roundToInt(textY)));
     }
 
     // Paint the children.