Out-of-line trace() methods of editing template types.

third_party/WebKit/Source/core/editing/EphemeralRange.h

Index: third_party/WebKit/Source/core/editing/EphemeralRange.h
diff --git a/third_party/WebKit/Source/core/editing/EphemeralRange.h b/third_party/WebKit/Source/core/editing/EphemeralRange.h
index c757af2c1f2de09a1449143dbce1bd0f10c5c227..2116b2c661f26e15225db78c5dafe069f7a1cc93 100644
--- a/third_party/WebKit/Source/core/editing/EphemeralRange.h
+++ b/third_party/WebKit/Source/core/editing/EphemeralRange.h
@@ -115,11 +115,6 @@ class CORE_TEMPLATE_CLASS_EXPORT EphemeralRangeTemplate final {
 
   RangeTraversal nodes() const;
 
-  DEFINE_INLINE_TRACE() {

[sof, 2017/02/07 11:05:57]

This was an unused trace method (the class is STACK_ALLOCATED()), which I notice
the GC plugin doesn't check for. Would it be worth adding a warning for this, or
should we just silently allow it?

-    visitor->trace(m_startPosition);
-    visitor->trace(m_endPosition);
-  }
-
   // |node| should be in-document and valid for anchor node of
   // |PositionTemplate<Strategy>|.
   static EphemeralRangeTemplate<Strategy> rangeOfContents(