SPv2: Add support for tracking raster paint invalidations in testing.

third_party/WebKit/Source/platform/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 import("//testing/test.gni")
 import("//third_party/WebKit/Source/build/scripts/scripts.gni")
 import("//third_party/WebKit/Source/config.gni")
@@ skipping 961 matching lines @@
     "graphics/paint/PaintArtifact.cpp",
     "graphics/paint/PaintArtifact.h",
     "graphics/paint/PaintArtifactToSkCanvas.cpp",
     "graphics/paint/PaintArtifactToSkCanvas.h",
     "graphics/paint/PaintChunk.h",
     "graphics/paint/PaintChunkProperties.h",
     "graphics/paint/PaintChunker.cpp",
     "graphics/paint/PaintChunker.h",
     "graphics/paint/PaintController.cpp",
     "graphics/paint/PaintController.h",
+    "graphics/paint/PaintInvalidationTracking.cpp",
+    "graphics/paint/PaintInvalidationTracking.h",
     "graphics/paint/ScopedPaintChunkProperties.h",
     "graphics/paint/ScrollDisplayItem.cpp",
     "graphics/paint/ScrollDisplayItem.h",
     "graphics/paint/ScrollPaintPropertyNode.h",
     "graphics/paint/SkPictureBuilder.cpp",
     "graphics/paint/SkPictureBuilder.h",
     "graphics/paint/SubsequenceDisplayItem.h",
     "graphics/paint/SubsequenceRecorder.cpp",
     "graphics/paint/SubsequenceRecorder.h",
     "graphics/paint/Transform3DDisplayItem.cpp",
@@ skipping 949 matching lines @@
     "//third_party/WebKit/Source:inside_blink",
   ]
 
   deps = [
     ":test_support",
     "//cc/surfaces:surface_id",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }