Fix unsigned comparison in previousIfPositionIsAfterLineBreak

Source/core/html/HTMLTextFormControlElement.cpp

Index: Source/core/html/HTMLTextFormControlElement.cpp
diff --git a/Source/core/html/HTMLTextFormControlElement.cpp b/Source/core/html/HTMLTextFormControlElement.cpp
index d6470ef46cfe6c21126637ee87e209af787ae120..d9b2c5b31cea91ae5ddde9009fd204eb6d2f5319 100644
--- a/Source/core/html/HTMLTextFormControlElement.cpp
+++ b/Source/core/html/HTMLTextFormControlElement.cpp
@@ -825,7 +825,7 @@ static Position previousIfPositionIsAfterLineBreak(const Position& position, HTM
     } else if (position.anchorNode()->isTextNode()) {
         Text* textNode = toText(position.anchorNode());
         unsigned offset = position.offsetInContainerNode();
-        if (textNode->length() == 0 || offset <= 0) {
+        if (textNode->length() == 0 || offset == 0) {
             return previousIfPositionIsAfterLineBreak(endOfPrevious(*position.anchorNode(), innerEditor), innerEditor);
         }