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

third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositorTest.cpp

 // Copyright 2016 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 "platform/graphics/compositing/PaintArtifactCompositor.h"
 
 #include "base/test/test_simple_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/layers/layer.h"
 #include "cc/test/fake_compositor_frame_sink.h"
@@ skipping 80 matching lines @@
         return *m_webLayerTreeView->layerTreeHost()->GetLayerTree()->property_trees();
     }
 
     const cc::TransformNode& transformNode(const cc::Layer* layer)
     {
         return *propertyTrees().transform_tree.Node(layer->transform_tree_index());
     }
 
     void update(const PaintArtifact& artifact)
     {
-        m_paintArtifactCompositor->update(artifact);
+        m_paintArtifactCompositor->update(artifact, nullptr);
         m_webLayerTreeView->layerTreeHost()->LayoutAndUpdateLayers();
     }
 
     cc::Layer* rootLayer() { return m_paintArtifactCompositor->rootLayer(); }
 
     size_t contentLayerCount()
     {
         return m_paintArtifactCompositor->getExtraDataForTesting()->contentLayers.size();
     }
 
@@ skipping 505 matching lines @@
 
     EXPECT_EQ(gfx::ScrollOffset(-11, -13), scrollTree.current_scroll_offset(contentLayerAt(0)->id()));
     EXPECT_EQ(gfx::ScrollOffset(-37, -41), scrollTree.current_scroll_offset(contentLayerAt(1)->id()));
 
     EXPECT_TRUE(scrollNodeA.main_thread_scrolling_reasons & MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects);
     EXPECT_FALSE(scrollNodeB.main_thread_scrolling_reasons & MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects);
 }
 
 } // namespace
 } // namespace blink