Add pointer-events="bounding-box" for svg content.

Source/core/rendering/svg/RenderSVGContainer.cpp

Index: Source/core/rendering/svg/RenderSVGContainer.cpp
diff --git a/Source/core/rendering/svg/RenderSVGContainer.cpp b/Source/core/rendering/svg/RenderSVGContainer.cpp
index ecb38aeccf839cf787a6cd8c27555e2af417ddc2..04f28cae87257b2b442e7b64b9495cdc46c1b4b6 100644
--- a/Source/core/rendering/svg/RenderSVGContainer.cpp
+++ b/Source/core/rendering/svg/RenderSVGContainer.cpp
@@ -186,7 +186,14 @@ bool RenderSVGContainer::nodeAtFloatPoint(const HitTestRequest& request, HitTest
         }
     }
 
-    // Spec: Only graphical elements can be targeted by the mouse, period.
+    // pointer-events=boundingBox makes it possible for containers to be direct targets
+    if (style()->pointerEvents() == PE_BOUNDINGBOX) {
+        ASSERT(isObjectBoundingBoxValid());
+        if (objectBoundingBox().contains(localPoint)) {
+            updateHitTestResult(result, roundedLayoutPoint(localPoint));
+            return true;
+        }
+    }
     // 16.4: "If there are no graphics elements whose relevant graphics content is under the pointer (i.e., there is no target element), the event is not dispatched."
     return false;
 }