[SPv2] Build trivial cc property trees in PaintArtifactCompositor.

third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp

Index: third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp
diff --git a/third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp b/third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp
index 288bc5d1345ddbc2e680a90f05fe85fae53e0e85..42803967b72775865d970f308065a354bf7a0843 100644
--- a/third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp
+++ b/third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp
@@ -18,13 +18,12 @@
 namespace blink {
 
 WebLayerTreeViewImplForTesting::WebLayerTreeViewImplForTesting()
+    : WebLayerTreeViewImplForTesting(defaultLayerTreeSettings())
 {
-    cc::LayerTreeSettings settings;
-
-    // For web contents, layer transforms should scale up the contents of layers
-    // to keep content always crisp when possible.
-    settings.layer_transforms_should_scale_layer_contents = true;
+}
 
+WebLayerTreeViewImplForTesting::WebLayerTreeViewImplForTesting(const cc::LayerTreeSettings& settings)
+{
     cc::LayerTreeHost::InitParams params;
     params.client = this;
     params.settings = &settings;
@@ -36,6 +35,18 @@ WebLayerTreeViewImplForTesting::WebLayerTreeViewImplForTesting()
 
 WebLayerTreeViewImplForTesting::~WebLayerTreeViewImplForTesting() {}
 
+// static
+cc::LayerTreeSettings WebLayerTreeViewImplForTesting::defaultLayerTreeSettings()
+{
+    cc::LayerTreeSettings settings;
+
+    // For web contents, layer transforms should scale up the contents of layers
+    // to keep content always crisp when possible.
+    settings.layer_transforms_should_scale_layer_contents = true;
+
+    return settings;
+}
+
 void WebLayerTreeViewImplForTesting::setRootLayer(const blink::WebLayer& root)
 {
     m_layerTreeHost->SetRootLayer(static_cast<const cc_blink::WebLayerImpl*>(&root)->layer());