Skip PaintPhaseDescendantOutlinesOnly if no descendent outlines in the layer

third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h

 // Copyright 2015 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.
 
 #ifndef PaintControllerPaintTest_h
 #define PaintControllerPaintTest_h
 
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutView.h"
@@ skipping 65 matching lines @@
         document().view()->lifecycle().advanceTo(DocumentLifecycle::PaintClean);
     }
 
     void paint(const IntRect* interestRect = nullptr)
     {
         // Only root graphics layer is supported.
         if (paintWithoutCommit(interestRect))
             commit();
     }
 
+    bool displayItemListContains(const DisplayItemList& displayItemList, DisplayItemClient& client, DisplayItem::Type type)
+    {
+        for (auto& item : displayItemList) {
+            if (item.client() == client && item.type() == type)
+                return true;
+        }
+        return false;
+    }
+
 private:
     bool m_originalSlimmingPaintOffsetCachingEnabled;
     bool m_originalSlimmingPaintV2Enabled;
     bool m_enableSlimmingPaintV2;
 };
 
 class PaintControllerPaintTest : public PaintControllerPaintTestBase {
 public:
     PaintControllerPaintTest() : PaintControllerPaintTestBase(false) { }
 };
@@ skipping 43 matching lines @@
 const DisplayItem::Type backgroundType = DisplayItem::BoxDecorationBackground;
 const DisplayItem::Type cachedBackgroundType = DisplayItem::drawingTypeToCachedDrawingType(backgroundType);
 const DisplayItem::Type foregroundType = DisplayItem::paintPhaseToDrawingType(PaintPhaseForeground);
 const DisplayItem::Type cachedForegroundType = DisplayItem::drawingTypeToCachedDrawingType(foregroundType);
 const DisplayItem::Type documentBackgroundType = DisplayItem::DocumentBackground;
 const DisplayItem::Type cachedDocumentBackgroundType = DisplayItem::drawingTypeToCachedDrawingType(DisplayItem::DocumentBackground);
 
 } // namespace blink
 
 #endif // PaintControllerPaintTest_h