Make Google Search autocomplete provider cursor aware.

chrome/browser/search_engines/template_url.h

 // Copyright (c) 2012 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_SEARCH_ENGINES_TEMPLATE_URL_H_
 #define CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 52 matching lines @@
     // The optional assisted query stats, aka AQS, used for logging purposes.
     // This string contains impressions of all autocomplete matches shown
     // at the query submission time.  For privacy reasons, we require the
     // search provider to support HTTPS protocol in order to receive the AQS
     // param.
     // For more details, see http://goto.google.com/binary-clients-logging .
     std::string assisted_query_stats;
 
     // TODO: Remove along with "aq" CGI param.
     int accepted_suggestion;
+
+    // The 0-based position of the cursor within the query string at the time
+    // the request was issued.  Set to string16::npos if not used or after the
+    // last character.
+    size_t cursor_position;
   };
 
   TemplateURLRef(TemplateURL* owner, Type type);
   TemplateURLRef(TemplateURL* owner, size_t index_in_owner);
   ~TemplateURLRef();
 
   // Returns the raw URL. None of the parameters will have been replaced.
   std::string GetURL() const;
 
   // Returns true if this URL supports replacement.
@@ skipping 67 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(TemplateURLTest, ParseURLTwoParameters);
   FRIEND_TEST_ALL_PREFIXES(TemplateURLTest, ParseURLNestedParameter);
 
   // Enumeration of the known types.
   enum ReplacementType {
     ENCODING,
     GOOGLE_ACCEPTED_SUGGESTION,
     GOOGLE_ASSISTED_QUERY_STATS,
     GOOGLE_BASE_URL,
     GOOGLE_BASE_SUGGEST_URL,
+    GOOGLE_CURSOR_POSITION,
     GOOGLE_INSTANT_ENABLED,
     GOOGLE_ORIGINAL_QUERY_FOR_SUGGESTION,
     GOOGLE_RLZ,
     GOOGLE_SEARCH_FIELDTRIAL_GROUP,
     GOOGLE_UNESCAPED_SEARCH_TERMS,
     LANGUAGE,
     SEARCH_TERMS,
   };
 
   // Used to identify an element of the raw url that can be replaced.
@@ skipping 317 matching lines @@
   TemplateURLRef url_ref_;
   TemplateURLRef suggestions_url_ref_;
   TemplateURLRef instant_url_ref_;
 
   // TODO(sky): Add date last parsed OSD file.
 
   DISALLOW_COPY_AND_ASSIGN(TemplateURL);
 };
 
 #endif  // CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_H_