Convert remaining RenderSVG* nodes to RenderObject::isChildAllowed

Source/core/rendering/svg/RenderSVGInline.cpp

Index: Source/core/rendering/svg/RenderSVGInline.cpp
diff --git a/Source/core/rendering/svg/RenderSVGInline.cpp b/Source/core/rendering/svg/RenderSVGInline.cpp
index 68b1a4029cd0b01518f49acdb7d7d0d6460b8192..6707906d526aef2cdee9e5ff1d97fcdabd4e6a78 100644
--- a/Source/core/rendering/svg/RenderSVGInline.cpp
+++ b/Source/core/rendering/svg/RenderSVGInline.cpp
@@ -23,6 +23,7 @@
 
 #include "core/rendering/svg/RenderSVGInline.h"
 
+#include "SVGNames.h"
 #include "core/rendering/svg/RenderSVGText.h"
 #include "core/rendering/svg/SVGInlineFlowBox.h"
 #include "core/rendering/svg/SVGRenderSupport.h"
@@ -35,6 +36,11 @@ bool RenderSVGInline::isChildAllowed(RenderObject* child, RenderStyle* style) co
     if (SVGRenderSupport::isEmptySVGInlineText(child))
         return false;
 
+    if (node()->hasTagName(SVGNames::aTag)) {
+        // Disallow direct descendant 'a'.
+        if (child->node()->hasTagName(SVGNames::aTag))
+            return false;
+    }
     return RenderInline::isChildAllowed(child, style);
 }