Use ExpandToParagraphBoundary in SpellChecker::FindFirstMisspelling

third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp

Index: third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp
diff --git a/third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp b/third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp
index 3e393d9debebb8b2f0359a5b99e6cb2aaf27f42e..6fb41144337221bbca50d37d4080c75727ed9e82 100644
--- a/third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp
+++ b/third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp
@@ -55,6 +55,21 @@ TEST_F(SpellCheckerTest, AdvanceToNextMisspellingWithImageInTableNoCrash) {
   GetDocument().GetFrame()->GetSpellChecker().AdvanceToNextMisspelling(false);
 }
 
+// Regression test for crbug.com/728801
+TEST_F(SpellCheckerTest, AdvancedToNextMisspellingWrapSearchNoCrash) {
+  SetBodyContent("<div contenteditable>  zz zz zz  </div>");
+
+  Element* div = GetDocument().QuerySelector("div");
+  div->focus();
+  Selection().SetSelection(SelectionInDOMTree::Builder()
+                               .Collapse(Position::LastPositionInNode(div))
+                               .Build());
+  UpdateAllLifecyclePhases();
+
+  // TODO(xiaochengh): We should have SpellCheckTestBase::GetSpellChecker().
+  GetFrame().GetSpellChecker().AdvanceToNextMisspelling(false);
+}
+
 TEST_F(SpellCheckerTest, SpellCheckDoesNotCauseUpdateLayout) {
   SetBodyContent("<input>");
   HTMLInputElement* input =