Use GeometryMapper in PaintLayerClipper.

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

Index: third_party/WebKit/Source/core/paint/PaintLayerClipper.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintLayerClipper.cpp b/third_party/WebKit/Source/core/paint/PaintLayerClipper.cpp
index b8b71d4fb8e797175369a82539f15252e8294057..70665a933389112afa9130c8da0145d0c8c32e0d 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayerClipper.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintLayerClipper.cpp
@@ -114,9 +114,8 @@ static void applyClipRects(const ClipRectsContext& context,
 }
 
 PaintLayerClipper::PaintLayerClipper(const PaintLayer& layer,
-                                     bool useGeometryMapper)
-    : m_layer(layer),
-      m_geometryMapper(useGeometryMapper ? new GeometryMapper : nullptr) {}
+                                     GeometryMapper* geometryMapper)
+    : m_layer(layer), m_geometryMapper(geometryMapper) {}
 
 ClipRects* PaintLayerClipper::clipRectsIfCached(
     const ClipRectsContext& context) const {
@@ -178,9 +177,6 @@ void PaintLayerClipper::clearCache(ClipRectsCacheSlot cacheSlot) {
     m_layer.clearClipRectsCache();
   else if (ClipRectsCache* cache = m_layer.clipRectsCache())
     cache->clear(cacheSlot);
-
-  if (m_geometryMapper)
-    m_geometryMapper.reset(new GeometryMapper);
 }
 
 void PaintLayerClipper::clearClipRectsIncludingDescendants() {