Use Instant suggested match type for Instant temporary text.

chrome/browser/autocomplete/search_provider.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.
 //
 // This file contains the Search autocomplete provider.  This provider is
 // responsible for all autocomplete entries that start with "Search <engine>
 // for ...", including searching for the current input string, search
 // history, and search suggestions.  An instance of it gets created and
 // managed by the autocomplete controller.
 
@@ skipping 55 matching lines @@
   // |suggestion.text|. |input_text| is the text the user input into the edit.
   // |input_text| differs from |input_.text()| if the input contained
   // whitespace.
   //
   // This method also marks the search provider as no longer needing to wait for
   // the instant result.
   void FinalizeInstantQuery(const string16& input_text,
                             const InstantSuggestion& suggestion);
   void ClearInstantSuggestion();
 
+  // Sets |match| to be a search for |query|, using the default search provider
+  // or current keyword provider (based on |is_keyword|). |original_query| and
+  // |accepted_suggestion| are used to fill in AQS (Assisted Query Stats).
+  // Returns true if successful (i.e., the |match| was filled in correctly).
+  bool GetSearchWhatYouTypedMatch(const string16& query,

[Mark P, 2013/04/09 23:59:11]

I find this somewhat misleading.  The match you're returning is not completely
populated correctly for use.  For instance, relevance score is not initialized. 
You should either set it or revise this comment.

[sreeram, 2013/04/11 20:37:54]

Done.

+                                  const string16& original_query,
+                                  int accepted_suggestion,
+                                  bool is_keyword,
+                                  AutocompleteMatch* match);
+
   // AutocompleteProvider:
   virtual void Start(const AutocompleteInput& input,
                      bool minimal_changes) OVERRIDE;
   virtual void Stop(bool clear_cached_results) OVERRIDE;
 
   // Adds search-provider-specific information to omnibox event logs.
   virtual void AddProviderInfo(ProvidersInfo* provider_info) const OVERRIDE;
 
   // Sets |field_trial_triggered_in_session_| to false.
   virtual void ResetSession() OVERRIDE;
@@ skipping 382 matching lines @@
   bool field_trial_triggered_;
 
   // Same as above except that it is maintained across the current Omnibox
   // session.
   bool field_trial_triggered_in_session_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchProvider);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_SEARCH_PROVIDER_H_