Revert "Remove spellcheck feedback."

chrome/browser/spellchecker/misspelling.h

Index: chrome/browser/spellchecker/misspelling.h
diff --git a/chrome/browser/spellchecker/misspelling.h b/chrome/browser/spellchecker/misspelling.h
new file mode 100644
index 0000000000000000000000000000000000000000..7db83f708ce8f8a542fca5c9e7458234b2476edf
--- /dev/null
+++ b/chrome/browser/spellchecker/misspelling.h
@@ -0,0 +1,72 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// An object to store user feedback to a single spellcheck suggestion.
+//
+// Stores the spellcheck suggestion, its uint32 hash identifier, and user's
+// feedback. The feedback is indirect, in the sense that we record user's
+// |action| instead of asking them how they feel about a spellcheck suggestion.
+// The object can serialize itself.
+
+#ifndef CHROME_BROWSER_SPELLCHECKER_MISSPELLING_H_
+#define CHROME_BROWSER_SPELLCHECKER_MISSPELLING_H_
+
+#include <vector>
+
+#include "base/time/time.h"
+#include "chrome/browser/spellchecker/spellcheck_action.h"
+
+// Stores user feedback to a spellcheck suggestion. Sample usage:
+//    Misspelling misspelling.
+//    misspelling.context = base::ASCIIToUTF16("Helllo world");
+//    misspelling.location = 0;
+//    misspelling.length = 6;
+//    misspelling.suggestions =
+//        std::vector<base::string16>(1, base::ASCIIToUTF16("Hello"));
+//    misspelling.hash = GenerateRandomHash();
+//    misspelling.action.type = SpellcheckAction::TYPE_SELECT;
+//    misspelling.action.index = 0;
+//    Process(misspelling.Serialize());
+class Misspelling {
+ public:
+  Misspelling();
+  Misspelling(const base::string16& context,
+              size_t location,
+              size_t length,
+              const std::vector<base::string16>& suggestions,
+              uint32 hash);
+  ~Misspelling();
+
+  // Serializes the data in this object into a dictionary value. The caller owns
+  // the result.
+  base::DictionaryValue* Serialize() const;
+
+  // Returns the substring of |context| that begins at |location| and contains
+  // |length| characters.
+  base::string16 GetMisspelledString() const;
+
+  // A several-word text snippet that immediately surrounds the misspelling.
+  base::string16 context;
+
+  // The number of characters between the beginning of |context| and the first
+  // misspelled character.
+  size_t location;
+
+  // The number of characters in the misspelling.
+  size_t length;
+
+  // Spelling suggestions.
+  std::vector<base::string16> suggestions;
+
+  // The hash that identifies the misspelling.
+  uint32 hash;
+
+  // User action.
+  SpellcheckAction action;
+
+  // The time when the user applied the action.
+  base::Time timestamp;
+};
+
+#endif  // CHROME_BROWSER_SPELLCHECKER_MISSPELLING_H_