Turn off the old compositing path for SPv2.

third_party/WebKit/Source/core/layout/LayoutView.cpp

Index: third_party/WebKit/Source/core/layout/LayoutView.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutView.cpp b/third_party/WebKit/Source/core/layout/LayoutView.cpp
index 551f8655f41e1eba24f7d16e2adea5d399990d5a..01b29ad9d91dd0fd6234cf087757727e43e73eba 100644
--- a/third_party/WebKit/Source/core/layout/LayoutView.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutView.cpp
@@ -120,7 +120,7 @@ bool LayoutView::hitTest(HitTestResult& result)
     // Note that Document::updateLayout calls its parent's updateLayout.
     // Note that if an iframe has its render pipeline throttled, it will not update layout here,
     // and it will also not propagate the hit test into the iframe's inner document.
-    frameView()->updateLifecycleToCompositingCleanPlusScrolling();
+    frameView()->updateAllLifecyclePhasesExceptPaint();
     HitTestLatencyRecorder hitTestLatencyRecorder(result.hitTestRequest().allowsChildFrameContent());
     return hitTestNoLifecycleUpdate(result);
 }