Rename DisplayItem::Type enum constants to Chromium style.

third_party/WebKit/Source/web/PageOverlayTest.cpp

Index: third_party/WebKit/Source/web/PageOverlayTest.cpp
diff --git a/third_party/WebKit/Source/web/PageOverlayTest.cpp b/third_party/WebKit/Source/web/PageOverlayTest.cpp
index 579dd52e6448960c33343ceb4b53aef9b7f550fb..cadc59fba960d8d6b7e3111a0494616209543e93 100644
--- a/third_party/WebKit/Source/web/PageOverlayTest.cpp
+++ b/third_party/WebKit/Source/web/PageOverlayTest.cpp
@@ -53,10 +53,10 @@ public:
 
     void paintPageOverlay(const PageOverlay& pageOverlay, GraphicsContext& graphicsContext, const WebSize& size) const override
     {
-        if (DrawingRecorder::useCachedDrawingIfPossible(graphicsContext, pageOverlay, DisplayItem::PageOverlay))
+        if (DrawingRecorder::useCachedDrawingIfPossible(graphicsContext, pageOverlay, DisplayItem::kPageOverlay))
             return;
         FloatRect rect(0, 0, size.width, size.height);
-        DrawingRecorder drawingRecorder(graphicsContext, pageOverlay, DisplayItem::PageOverlay, rect);
+        DrawingRecorder drawingRecorder(graphicsContext, pageOverlay, DisplayItem::kPageOverlay, rect);
         graphicsContext.fillRect(rect, m_color);
     }