Rename DisplayItem::Type enum constants to Chromium style.

third_party/WebKit/Source/core/paint/SVGMaskPainter.cpp

Index: third_party/WebKit/Source/core/paint/SVGMaskPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/SVGMaskPainter.cpp b/third_party/WebKit/Source/core/paint/SVGMaskPainter.cpp
index a6f534ed45df2d9c8c418676058851c48878d2ed..55694ffcecf4273ae0311d1946294d476a379dd5 100644
--- a/third_party/WebKit/Source/core/paint/SVGMaskPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/SVGMaskPainter.cpp
@@ -51,10 +51,10 @@ void SVGMaskPainter::drawMaskForLayoutObject(GraphicsContext& context, const Lay
     AffineTransform contentTransformation;
     RefPtr<const SkPicture> maskContentPicture = m_mask.createContentPicture(contentTransformation, targetBoundingBox, context);
 
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, layoutObject, DisplayItem::SVGMask))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, layoutObject, DisplayItem::kSVGMask))
         return;
 
-    LayoutObjectDrawingRecorder drawingRecorder(context, layoutObject, DisplayItem::SVGMask, targetPaintInvalidationRect);
+    LayoutObjectDrawingRecorder drawingRecorder(context, layoutObject, DisplayItem::kSVGMask, targetPaintInvalidationRect);
     context.save();
     context.concatCTM(contentTransformation);
     context.drawPicture(maskContentPicture.get());