| Index: chrome/browser/spellchecker/feedback_sender.cc
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| diff --git a/chrome/browser/spellchecker/feedback_sender.cc b/chrome/browser/spellchecker/feedback_sender.cc
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| index f8d4957c64efe9ad352c7c3baaa2033b65833572..8943667f175b0551b893541c095acb419f90402a 100644
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| --- a/chrome/browser/spellchecker/feedback_sender.cc
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| +++ b/chrome/browser/spellchecker/feedback_sender.cc
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| @@ -345,12 +345,9 @@ void FeedbackSender::RequestDocumentMarkers() {
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|    // longer alive.
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|    std::vector<int> known_renderers = feedback_.GetRendersWithMisspellings();
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|    std::sort(known_renderers.begin(), known_renderers.end());
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| -  std::vector<int> dead_renderers;
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| -  std::set_difference(known_renderers.begin(),
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| -                      known_renderers.end(),
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| -                      alive_renderers.begin(),
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| -                      alive_renderers.end(),
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| -                      std::back_inserter(dead_renderers));
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| +  std::vector<int> dead_renderers =
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| +      base::STLSetDifference<std::vector<int> >(known_renderers,
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| +                                                alive_renderers);
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|    for (std::vector<int>::const_iterator it = dead_renderers.begin();
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|         it != dead_renderers.end();
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|         ++it) {
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| 
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