Turn off the old compositing path for SPv2.

third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h

Index: third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h
diff --git a/third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h b/third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h
index 341efbe7861538e8384684ae866e0256581e747c..26dcf2ea1aca0377c8a51b084613314be5bb0246 100644
--- a/third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h
+++ b/third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h
@@ -21,6 +21,7 @@ class ScrollPaintPropertyNode;
 } // namespace blink
 
 // Outside the blink namespace for ease of invocation from gdb.
+CORE_EXPORT void showAllPropertyTrees(const blink::FrameView& rootFrame);
 CORE_EXPORT void showTransformPropertyTree(const blink::FrameView& rootFrame);
 CORE_EXPORT void showClipPropertyTree(const blink::FrameView& rootFrame);
 CORE_EXPORT void showEffectPropertyTree(const blink::FrameView& rootFrame);