Implement Bookmark Autocomplete Provider

chrome/browser/history/query_parser.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_HISTORY_QUERY_PARSER_H_
 #define CHROME_BROWSER_HISTORY_QUERY_PARSER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 22 matching lines @@
   // the number of words in this node.
   virtual int AppendToSQLiteQuery(string16* query) const = 0;
 
   // Return true if this is a QueryNodeWord, false if it's a QueryNodeList.
   virtual bool IsWord() const = 0;
 
   // Returns true if this node matches |word|. If |exact| is true, the string
   // must exactly match. Otherwise, this uses a starts with comparison.
   virtual bool Matches(const string16& word, bool exact) const = 0;
 
-  // Returns true if this node matches at least one of the words in |words|. If
-  // the node matches at least one word, an entry is added to |match_positions|
-  // giving the matching region.
+  // Returns true if this node matches at least one of the words in |words|. An
+  // entry is added to |match_positions| for all matching words giving the
+  // matching regions.
   virtual bool HasMatchIn(const std::vector<QueryWord>& words,
                           Snippet::MatchPositions* match_positions) const = 0;
 
   // Appends the words that make up this node in |words|.
   virtual void AppendWords(std::vector<string16>* words) const = 0;
 };
 
 // This class is used to parse queries entered into the history search into more
 // normalized queries that can be passed to the SQLite backend.
 class QueryParser {
@@ skipping 36 matching lines @@
   // This is invoked from both of the ParseQuery methods.
   bool ParseQueryImpl(const string16& query, QueryNodeList* root);
 
   // Extracts the words from |text|, placing each word into |words|.
   void ExtractQueryWords(const string16& text, std::vector<QueryWord>* words);
 
   DISALLOW_COPY_AND_ASSIGN(QueryParser);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_QUERY_PARSER_H_