Remove spelling markers in disabled and readonly form elements

third_party/WebKit/Source/core/html/TextControlElement.cpp

Index: third_party/WebKit/Source/core/html/TextControlElement.cpp
diff --git a/third_party/WebKit/Source/core/html/TextControlElement.cpp b/third_party/WebKit/Source/core/html/TextControlElement.cpp
index 71f9b7796e538155913811dbe66603e9239174dd..e4cc3c8d29ae8cf02621afd06f4c847ff6f88300 100644
--- a/third_party/WebKit/Source/core/html/TextControlElement.cpp
+++ b/third_party/WebKit/Source/core/html/TextControlElement.cpp
@@ -37,6 +37,7 @@
 #include "core/editing/iterators/CharacterIterator.h"
 #include "core/editing/iterators/TextIterator.h"
 #include "core/editing/serializers/Serialization.h"
+#include "core/editing/spellcheck/SpellChecker.h"
 #include "core/events/Event.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
@@ -747,6 +748,12 @@ void TextControlElement::parseAttribute(
   } else {
     HTMLFormControlElementWithState::parseAttribute(params);
   }
+
+  if ((params.name == disabledAttr || params.name == readonlyAttr) &&
+      (params.oldValue.isNull() != params.newValue.isNull()) &&
+      isTextControl() && isDisabledOrReadOnly() && document().frame()) {
+    document().frame()->spellChecker().cancelCheck();
+  }
 }
 
 bool TextControlElement::lastChangeWasUserEdit() const {