[poc] redecode

third_party/WebKit/Source/core/frame/FrameView.cpp

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index d6cf5262ca000d515f6127e503003f14f40d8aa9..bfa6c56cccd4198652dd87fc07f084a60b9bdf1e 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -92,6 +92,7 @@
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/GraphicsLayerDebugInfo.h"
+#include "platform/graphics/GraphicsScreen.h"
 #include "platform/graphics/paint/CullRect.h"
 #include "platform/graphics/paint/PaintController.h"
 #include "platform/scheduler/CancellableTaskFactory.h"
@@ -2368,11 +2369,16 @@ void FrameView::updateLifecyclePhasesInternal(LifeCycleUpdateOption phases)
     // Updating layout can run script, which can tear down the FrameView.
     RefPtrWillBeRawPtr<FrameView> protector(this);
 
+    int64_t previousId = setCurrentScreenId(reinterpret_cast<int64_t>(page()));
+    fflush(stderr);
+
     updateStyleAndLayoutIfNeededRecursive();
     ASSERT(lifecycle().state() >= DocumentLifecycle::LayoutClean);
 
     if (phases == OnlyUpToLayoutClean) {
         updateViewportIntersectionsForSubtree();
+        setCurrentScreenId(previousId);
+        fflush(stderr);
         return;
     }
 
@@ -2414,6 +2420,8 @@ void FrameView::updateLifecyclePhasesInternal(LifeCycleUpdateOption phases)
     }
 
     updateViewportIntersectionsForSubtree();
+    setCurrentScreenId(previousId);
+    fflush(stderr);
 }
 
 void FrameView::updatePaintProperties()