Ensure valid VisiblePosition input for absoluteCaretBoundsOf

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

Index: third_party/WebKit/Source/core/editing/VisibleUnits.h
diff --git a/third_party/WebKit/Source/core/editing/VisibleUnits.h b/third_party/WebKit/Source/core/editing/VisibleUnits.h
index 881d86dab24cf56aa0e04fc3cf49fc46ef8acc87..bd53389224fedc6781d943f4c77bfe35473464bd 100644
--- a/third_party/WebKit/Source/core/editing/VisibleUnits.h
+++ b/third_party/WebKit/Source/core/editing/VisibleUnits.h
@@ -117,6 +117,11 @@ CORE_EXPORT PositionInFlatTree canonicalPositionOf(const PositionInFlatTree&);
 CORE_EXPORT IntRect absoluteCaretBoundsOf(const VisiblePosition&);
 CORE_EXPORT IntRect absoluteCaretBoundsOf(const VisiblePositionInFlatTree&);
 
+// This deprecated function accepts an invalid VisiblePosition as input, which
+// is discouraged. Callers should ensure passing a valid VisiblePosition to the
+// un-deprecated function listed above.
+CORE_EXPORT IntRect absoluteCaretBoundsOfDeprecated(const VisiblePosition&);
+
 CORE_EXPORT UChar32 characterAfter(const VisiblePosition&);
 CORE_EXPORT UChar32 characterAfter(const VisiblePositionInFlatTree&);
 CORE_EXPORT UChar32 characterBefore(const VisiblePosition&);