cc: Make DisplayItemList::Append replay into an SkPicture

cc/trees/layer_tree_host_pixeltest_masks.cc

Index: cc/trees/layer_tree_host_pixeltest_masks.cc
diff --git a/cc/trees/layer_tree_host_pixeltest_masks.cc b/cc/trees/layer_tree_host_pixeltest_masks.cc
index 97765bda71ae8d7797979698da341f516322a802..9358e101f0c128fa88a1d538428bd8c52c498d22 100644
--- a/cc/trees/layer_tree_host_pixeltest_masks.cc
+++ b/cc/trees/layer_tree_host_pixeltest_masks.cc
@@ -50,7 +50,7 @@ class MaskContentLayerClient : public ContentLayerClient {
       const gfx::Rect& clip,
       PaintingControlSetting picture_control) override {
     NOTIMPLEMENTED();
-    return DisplayItemList::Create();
+    return DisplayItemList::Create(clip);
   }
 
  private:
@@ -307,7 +307,7 @@ class CheckerContentLayerClient : public ContentLayerClient {
       const gfx::Rect& clip,
       PaintingControlSetting picture_control) override {
     NOTIMPLEMENTED();
-    return DisplayItemList::Create();
+    return DisplayItemList::Create(clip);
   }
 
  private:
@@ -338,7 +338,7 @@ class CircleContentLayerClient : public ContentLayerClient {
       const gfx::Rect& clip,
       PaintingControlSetting picture_control) override {
     NOTIMPLEMENTED();
-    return DisplayItemList::Create();
+    return DisplayItemList::Create(clip);
   }
 
  private: