Remove infinite clip in PaintArtifactCompositor.

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 00b42f49923192a032fd0eac271336db5f9aa865..faf4f8c40da861bce3e9b9087db13a1b25e92ca1 100644
--- a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
+++ b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
@@ -297,11 +297,8 @@ static void applyClipsBetweenStates(const PropertyTreeState& localState,
 
   FloatRect combinedClip;
   bool success = false;
-  // TODO(chrishtr) :get rid of infiniteIntRect here.
-  combinedClip = geometryMapper.localToVisualRectInAncestorSpace(
-      FloatRect(LayoutRect::infiniteIntRect()), localState, ancestorState,
-      success);
-
+  combinedClip = geometryMapper.localToAncestorClipRect(localState,
+                                                        ancestorState, success);
   DCHECK(success);
 
   ccList.CreateAndAppendPairedBeginItem<cc::FloatClipDisplayItem>(