Don't include LineLayoutItem.h from SVGTextContentElement.h.

third_party/WebKit/Source/core/svg/SVGTextContentElement.cpp

Index: third_party/WebKit/Source/core/svg/SVGTextContentElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGTextContentElement.cpp b/third_party/WebKit/Source/core/svg/SVGTextContentElement.cpp
index 1ec25c5b3e67a3a08116217bb70235fbddffd794..a06a9b7633b97a1fc47f20274bd87c323d4f99a0 100644
--- a/third_party/WebKit/Source/core/svg/SVGTextContentElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGTextContentElement.cpp
@@ -30,6 +30,7 @@
 #include "core/editing/FrameSelection.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
+#include "core/layout/api/LineLayoutItem.h"
 #include "core/layout/svg/SVGTextQuery.h"
 
 namespace blink {
@@ -249,7 +250,7 @@ bool SVGTextContentElement::selfHasRelativeLengths() const
     return true;
 }
 
-SVGTextContentElement* SVGTextContentElement::elementFromLineLayoutItem(LineLayoutItem lineLayoutItem)
+SVGTextContentElement* SVGTextContentElement::elementFromLineLayoutItem(const LineLayoutItem& lineLayoutItem)
 {
     if (!lineLayoutItem || (!lineLayoutItem.isSVGText() && !lineLayoutItem.isSVGInline()))
         return nullptr;