cc: Compute draw transforms dynamically.

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

Index: third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
index 8e811bf0f93badfb6929d77332b80e14d94905fa..51f76d8ca7330c0bb4d58f71307be61f14777a1c 100644
--- a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
+++ b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
@@ -316,6 +316,7 @@ int PropertyTreeManager::compositorIdForClipNode(const ClipPaintPropertyNode* cl
     compositorNode.clip = clipNode->clipRect().rect();
     compositorNode.transform_id = compositorIdForTransformNode(clipNode->localTransformSpace());
     compositorNode.target_transform_id = kRealRootNodeId;
+    compositorNode.target_effect_id = kSecondaryRootNodeId;
     compositorNode.applies_local_clip = true;
     compositorNode.layers_are_clipped = true;
     compositorNode.layers_are_clipped_when_surfaces_disabled = true;
@@ -403,6 +404,7 @@ void PropertyTreeManager::buildEffectNodesRecursively(const EffectPaintPropertyN
     dummyClip.owner_id = dummyLayer->id();
     dummyClip.transform_id = kRealRootNodeId;
     dummyClip.target_transform_id = kRealRootNodeId;
+    dummyClip.target_effect_id = kSecondaryRootNodeId;
 
     cc::EffectNode& effectNode = *effectTree().Node(effectTree().Insert(cc::EffectNode(), compositorIdForCurrentEffectNode()));
     effectNode.owner_id = dummyLayer->id();
@@ -474,6 +476,7 @@ void PaintArtifactCompositor::update(const PaintArtifact& paintArtifact)
     // Mark the property trees as having been rebuilt.
     host->GetLayerTree()->property_trees()->sequence_number = kPropertyTreeSequenceNumber;
     host->GetLayerTree()->property_trees()->needs_rebuild = false;
+    host->GetLayerTree()->property_trees()->ResetCachedData();
 }
 
 } // namespace blink