Move visual rect unioning between paired items to cc::DisplayItemList.

cc/trees/layer_tree_host_pixeltest_masks.cc

 // Copyright 2013 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 <stddef.h>
 
 #include "build/build_config.h"
 #include "cc/layers/content_layer_client.h"
 #include "cc/layers/picture_image_layer.h"
 #include "cc/layers/picture_layer.h"
@@ skipping 43 matching lines @@
       inset_rect.Inset(3, 3, 2, 2);
       canvas->drawRect(
           SkRect::MakeXYWH(inset_rect.x(), inset_rect.y(),
                            inset_rect.width(), inset_rect.height()),
           paint);
       inset_rect.Inset(3, 3, 2, 2);
     }
 
     scoped_refptr<DisplayItemList> display_list =
         DisplayItemList::Create(PaintableRegion(), DisplayItemListSettings());
-    display_list->CreateAndAppendItem<DrawingDisplayItem>(
+    display_list->CreateAndAppendDrawingItem<DrawingDisplayItem>(
         PaintableRegion(), recorder.finishRecordingAsPicture());
 
     display_list->Finalize();
     return display_list;
   }
 
  private:
   gfx::Size bounds_;
 };
 
@@ skipping 279 matching lines @@
         canvas->drawLine(i, 0, i, bounds_.height(), paint);
       }
     } else {
       for (int i = 4; i < bounds_.height(); i += 16) {
         canvas->drawLine(0, i, bounds_.width(), i, paint);
       }
     }
 
     scoped_refptr<DisplayItemList> display_list =
         DisplayItemList::Create(PaintableRegion(), DisplayItemListSettings());
-    display_list->CreateAndAppendItem<DrawingDisplayItem>(
+    display_list->CreateAndAppendDrawingItem<DrawingDisplayItem>(
         PaintableRegion(), recorder.finishRecordingAsPicture());
 
     display_list->Finalize();
     return display_list;
   }
 
  private:
   gfx::Size bounds_;
   SkColor color_;
   bool vertical_;
@@ skipping 17 matching lines @@
     paint.setStyle(SkPaint::kFill_Style);
     paint.setColor(SK_ColorWHITE);
     canvas->clear(SK_ColorTRANSPARENT);
     canvas->drawCircle(bounds_.width() / 2,
                        bounds_.height() / 2,
                        bounds_.width() / 4,
                        paint);
 
     scoped_refptr<DisplayItemList> display_list =
         DisplayItemList::Create(PaintableRegion(), DisplayItemListSettings());
-    display_list->CreateAndAppendItem<DrawingDisplayItem>(
+    display_list->CreateAndAppendDrawingItem<DrawingDisplayItem>(
         PaintableRegion(), recorder.finishRecordingAsPicture());
 
     display_list->Finalize();
     return display_list;
   }
 
  private:
   gfx::Size bounds_;
 };
 
@@ skipping 105 matching lines @@
 
   RunPixelResourceTest(background,
                        base::FilePath(
                            FILE_PATH_LITERAL("mask_of_layer_with_blend.png")));
 }
 
 }  // namespace
 }  // namespace cc
 
 #endif  // !defined(OS_ANDROID)