Refactor DrawingRecorders to check for cached drawings earlier

Source/platform/scroll/ScrollbarTheme.cpp

Index: Source/platform/scroll/ScrollbarTheme.cpp
diff --git a/Source/platform/scroll/ScrollbarTheme.cpp b/Source/platform/scroll/ScrollbarTheme.cpp
index 71eb81f8d67906f2812518b444d528f38669c043..a74393eb342882f277b58b0a4399d938fae14aee 100644
--- a/Source/platform/scroll/ScrollbarTheme.cpp
+++ b/Source/platform/scroll/ScrollbarTheme.cpp
@@ -215,10 +215,10 @@ void ScrollbarTheme::paintScrollCorner(GraphicsContext* context, const DisplayIt
     if (cornerRect.isEmpty())
         return;
 
-    DrawingRecorder recorder(*context, displayItemClient, DisplayItem::ScrollbarCorner, cornerRect);
-    if (recorder.canUseCachedDrawing())
+    if (DrawingRecorder::useCachedDrawingIfPossible(*context, displayItemClient, DisplayItem::ScrollbarCorner))
         return;
 
+    DrawingRecorder recorder(*context, displayItemClient, DisplayItem::ScrollbarCorner, cornerRect);
 #if OS(MACOSX)
     context->fillRect(cornerRect, Color::white);
 #else