Refactor DrawingRecorders to check for cached drawings earlier

Source/core/paint/ScrollableAreaPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/paint/ScrollableAreaPainter.h"
 
 #include "core/layout/LayoutView.h"
 #include "core/page/Page.h"
 #include "core/paint/DeprecatedPaintLayer.h"
@@ skipping 19 matching lines @@
     if (m_scrollableArea.resizer()) {
         if (!absRect.intersects(damageRect))
             return;
         ScrollbarPainter::paintIntoRect(m_scrollableArea.resizer(), context, paintOffset, LayoutRect(absRect));
         return;
     }
 
     if (!RuntimeEnabledFeatures::slimmingPaintEnabled() && !absRect.intersects(damageRect))
         return;
 
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*context, m_scrollableArea.box(), DisplayItem::Resizer))
+        return;
+
     LayoutObjectDrawingRecorder recorder(*context, m_scrollableArea.box(), DisplayItem::Resizer, absRect);
-    if (recorder.canUseCachedDrawing())
-        return;
 
     drawPlatformResizerImage(context, absRect);
 
     // Draw a frame around the resizer (1px grey line) if there are any scrollbars present.
     // Clipping will exclude the right and bottom edges of this frame.
     if (!m_scrollableArea.hasOverlayScrollbars() && m_scrollableArea.hasScrollbar()) {
         GraphicsContextStateSaver stateSaver(*context);
         context->clip(absRect);
         IntRect largerCorner = absRect;
         largerCorner.setSize(IntSize(largerCorner.width() + 1, largerCorner.height() + 1));
@@ skipping 131 matching lines @@
     }
 
     if (!RuntimeEnabledFeatures::slimmingPaintEnabled() && !absRect.intersects(damageRect))
         return;
 
     // We don't want to paint white if we have overlay scrollbars, since we need
     // to see what is behind it.
     if (m_scrollableArea.hasOverlayScrollbars())
         return;
 
-    LayoutObjectDrawingRecorder recorder(*context, m_scrollableArea.box(), DisplayItem::ScrollbarCorner, absRect);
-    if (recorder.canUseCachedDrawing())
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*context, m_scrollableArea.box(), DisplayItem::ScrollbarCorner))
         return;
 
+    LayoutObjectDrawingRecorder recorder(*context, m_scrollableArea.box(), DisplayItem::ScrollbarCorner, absRect);
     context->fillRect(absRect, Color::white);
 }
 
 } // namespace blink