Pass Only the Pasted Text to Spellchecker

third_party/WebKit/Source/core/editing/Editor.cpp

Index: third_party/WebKit/Source/core/editing/Editor.cpp
diff --git a/third_party/WebKit/Source/core/editing/Editor.cpp b/third_party/WebKit/Source/core/editing/Editor.cpp
index a84363f25882ba3ac78ca7e62a3d5de8f68149c6..6ac01cdf4159227f26899b2694297968b60a8101 100644
--- a/third_party/WebKit/Source/core/editing/Editor.cpp
+++ b/third_party/WebKit/Source/core/editing/Editor.cpp
@@ -512,7 +512,11 @@ void Editor::replaceSelectionWithFragment(PassRefPtrWillBeRawPtr<DocumentFragmen
 
     if (frame().selection().isInPasswordField() || !spellChecker().isContinuousSpellCheckingEnabled())
         return;
-    spellChecker().chunkAndMarkAllMisspellingsAndBadGrammar(frame().selection().rootEditableElement());
+    ASSERT(lastEditCommand()->isReplaceSelectionCommand());
+    const EphemeralRange& insertedRange = toReplaceSelectionCommand(lastEditCommand())->insertedRange();
+    if (insertedRange.isNull())
+        return;
+    spellChecker().chunkAndMarkAllMisspellingsAndBadGrammar(frame().selection().rootEditableElement(), insertedRange);
 }
 
 void Editor::replaceSelectionWithText(const String& text, bool selectReplacement, bool smartReplace)