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

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

Index: third_party/WebKit/Source/core/layout/LayoutObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.cpp b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
index 4e3cbf445b5bb3b2f91f048884e177cc599ba291..f4394b90efa070269ca640f44097d4126224c71f 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
@@ -1541,6 +1541,10 @@ StyleDifference LayoutObject::adjustStyleDifference(
       diff.setNeedsPaintInvalidationObject();
   }
 
+  if (!diff.needsPaintInvalidation() && isSVG() && hasClipPath() &&

[fs, 2016/11/07 12:03:30]

Neither does this (very/overly case-specific.)

+      style()->visibility() == EVisibility::Visible)
+    diff.setNeedsPaintInvalidationObject();
+
   // The answer to layerTypeRequired() for plugins, iframes, and canvas can
   // change without the actual style changing, since it depends on whether we
   // decide to composite these elements. When the/ layer status of one of these