Fix up that no render SVG shape when change clip-path to visible after hidden.

third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.cpp

Index: third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.cpp
diff --git a/third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.cpp b/third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.cpp
index 5422c57f26f73dbef20bcc70007e23e968304288..2a10053c3e1dd6503af675b6dd73525758b69886 100644
--- a/third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.cpp
+++ b/third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.cpp
@@ -128,8 +128,13 @@ void SVGResourcesCache::clientStyleChanged(LayoutObject* layoutObject,
     cache.addResourcesFromLayoutObject(layoutObject, newStyle);
   }
 
+  bool needLayout = false;
+
+  if (layoutObject->isSVGResourceContainer())

[fs, 2017/01/23 12:44:24]

What if we only toggle 'visibility' on the <rect>?

+    needLayout = diff.needsPaintInvalidation();
+
   LayoutSVGResourceContainer::markForLayoutAndParentResourceInvalidation(
-      layoutObject, false);
+      layoutObject, needLayout);
 }
 
 void SVGResourcesCache::clientWasAddedToTree(LayoutObject* layoutObject,