Cleanup: Start using toFoo methods as part of newly adopted coding guideline.

Source/core/rendering/svg/SVGTextQuery.cpp

Index: Source/core/rendering/svg/SVGTextQuery.cpp
diff --git a/Source/core/rendering/svg/SVGTextQuery.cpp b/Source/core/rendering/svg/SVGTextQuery.cpp
index c04fcf5f0dc5bedb2414e4fcdd1b7e4e50f73819..32674aba78fe320ebd147d073293f704dc6383d2 100644
--- a/Source/core/rendering/svg/SVGTextQuery.cpp
+++ b/Source/core/rendering/svg/SVGTextQuery.cpp
@@ -94,7 +94,7 @@ void SVGTextQuery::collectTextBoxesInFlowBox(InlineFlowBox* flowBox)
             if (!child->renderer()->node())
                 continue;
 
-            collectTextBoxesInFlowBox(static_cast<InlineFlowBox*>(child));
+            collectTextBoxesInFlowBox(toInlineFlowBox(child));
             continue;
         }