Add paint property path printers and test them

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 ed1b82b57f85728d7eb20926fb01fa9fa80ef421..f7e830ffd514ff12e0837bd8bf47ad3252daa5ef 100644
--- a/third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h
+++ b/third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.h
@@ -26,12 +26,20 @@ CORE_EXPORT void showTransformPropertyTree(const blink::FrameView& rootFrame);
 CORE_EXPORT void showClipPropertyTree(const blink::FrameView& rootFrame);
 CORE_EXPORT void showEffectPropertyTree(const blink::FrameView& rootFrame);
 CORE_EXPORT void showScrollPropertyTree(const blink::FrameView& rootFrame);
-
 CORE_EXPORT String transformPropertyTreeAsString(const blink::FrameView& rootFrame);
 CORE_EXPORT String clipPropertyTreeAsString(const blink::FrameView& rootFrame);
 CORE_EXPORT String effectPropertyTreeAsString(const blink::FrameView& rootFrame);
 CORE_EXPORT String scrollPropertyTreeAsString(const blink::FrameView& rootFrame);
 
+CORE_EXPORT void showPaintPropertyPath(const blink::TransformPaintPropertyNode*);
+CORE_EXPORT void showPaintPropertyPath(const blink::ClipPaintPropertyNode*);
+CORE_EXPORT void showPaintPropertyPath(const blink::EffectPaintPropertyNode*);
+CORE_EXPORT void showPaintPropertyPath(const blink::ScrollPaintPropertyNode*);
+CORE_EXPORT String transformPaintPropertyPathAsString(const blink::TransformPaintPropertyNode*);
+CORE_EXPORT String clipPaintPropertyPathAsString(const blink::ClipPaintPropertyNode*);
+CORE_EXPORT String effectPaintPropertyPathAsString(const blink::EffectPaintPropertyNode*);
+CORE_EXPORT String scrollPaintPropertyPathAsString(const blink::ScrollPaintPropertyNode*);
+
 CORE_EXPORT String paintPropertyTreeGraph(const blink::FrameView&);
 
 #endif // ifndef NDEBUG