Rename DisplayItem::Type enum constants to Chromium style.

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

Index: third_party/WebKit/Source/core/paint/ViewPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/ViewPainter.cpp b/third_party/WebKit/Source/core/paint/ViewPainter.cpp
index 0eaa3933544410cc693a4a4901dec83cce0e6165..db903fd3303cf59cd30c8d36c7143ae3911affab 100644
--- a/third_party/WebKit/Source/core/paint/ViewPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/ViewPainter.cpp
@@ -49,7 +49,7 @@ void ViewPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo)
     //    culling and pre-blending optimization when possible.
 
     GraphicsContext& context = paintInfo.context;
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, m_layoutView, DisplayItem::DocumentBackground))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, m_layoutView, DisplayItem::kDocumentBackground))
         return;
 
     // The background fill rect is the size of the LayoutView's main GraphicsLayer.
@@ -63,7 +63,7 @@ void ViewPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo)
     Color rootBackgroundColor = m_layoutView.style()->visitedDependentColor(CSSPropertyBackgroundColor);
     const LayoutObject* rootObject = document.documentElement() ? document.documentElement()->layoutObject() : nullptr;
 
-    LayoutObjectDrawingRecorder recorder(context, m_layoutView, DisplayItem::DocumentBackground, backgroundRect);
+    LayoutObjectDrawingRecorder recorder(context, m_layoutView, DisplayItem::kDocumentBackground, backgroundRect);
 
     // Special handling for print economy mode.
     bool forceBackgroundToWhite = BoxPainter::shouldForceWhiteBackgroundForPrintEconomy(m_layoutView.styleRef(), document);