Enabled pressing TAB to cycle through the Omnibox results.

chrome/browser/autocomplete/keyword_provider.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.
 //
 // This file contains the keyword autocomplete provider. The keyword provider
 // is responsible for remembering/suggesting user "search keyword queries"
 // (e.g.  "imdb Godzilla") and then fixing them up into valid URLs.  An
 // instance of it gets created and managed by the autocomplete controller.
 // KeywordProvider uses a TemplateURLService to find the set of keywords.
 //
@@ skipping 37 matching lines @@
 // action "[keyword] %s".  If the user has typed a (possibly partial) keyword
 // but no search terms, the suggested result is shown greyed out, with
 // "<enter term(s)>" as the substituted input, and does nothing when selected.
 class KeywordProvider : public AutocompleteProvider,
                         public content::NotificationObserver {
  public:
   KeywordProvider(ACProviderListener* listener, Profile* profile);
   // For testing.
   KeywordProvider(ACProviderListener* listener, TemplateURLService* model);
 
+  // Extracts the next whitespace-delimited token from input and returns it.
+  // Sets |remaining_input| to everything after the first token (skipping over
+  // the first intervening whitespace).
+  // If |trim_leading_whitespace| is true then leading whitespace in
+  // |*remaining_input| will be trimmed.
+  static string16 SplitKeywordFromInput(const string16& input,
+    bool trim_leading_whitespace,
+    string16* remaining_input);
+
   // Returns the replacement string from the user input. The replacement
   // string is the portion of the input that does not contain the keyword.
   // For example, the replacement string for "b blah" is blah.
   // If |trim_leading_whitespace| is true then leading whitespace in
   // replacement string will be trimmed.
   static string16 SplitReplacementStringFromInput(
       const string16& input,
       bool trim_leading_whitespace);
 
   // Returns the matching substituting keyword for |input|, or NULL if there
   // is no keyword for the specified input.
   static const TemplateURL* GetSubstitutingTemplateURLForInput(
       Profile* profile,
       const AutocompleteInput& input,
       string16* remaining_input);
 
+  // If |text| corresponds (in the sense of
+  // TemplateURLModel::CleanUserInputKeyword()) to an enabled, substituting
+  // keyword, returns that keyword; returns the empty string otherwise.
+  string16 GetKeywordForText(const string16& text) const;
+
+  // Creates a fully marked-up AutocompleteMatch for a specific keyword.
+  AutocompleteMatch CreateAutocompleteMatch(
+      const string16& text,
+      const string16& keyword,
+      const AutocompleteInput& input);
+
   // AutocompleteProvider
   virtual void Start(const AutocompleteInput& input,
                      bool minimal_changes) OVERRIDE;
   virtual void Stop() OVERRIDE;
 
  private:
   class ScopedEndExtensionKeywordMode;
   friend class ScopedEndExtensionKeywordMode;
 
   virtual ~KeywordProvider();
 
   // Extracts the keyword from |input| into |keyword|. Any remaining characters
   // after the keyword are placed in |remaining_input|. Returns true if |input|
   // is valid and has a keyword. This makes use of SplitKeywordFromInput to
   // extract the keyword and remaining string, and uses
   // TemplateURLService::CleanUserInputKeyword to remove unnecessary characters.
   // In general use this instead of SplitKeywordFromInput.
   // Leading whitespace in |*remaining_input| will be trimmed.
   static bool ExtractKeywordFromInput(const AutocompleteInput& input,
                                       string16* keyword,
                                       string16* remaining_input);
 
-  // Extracts the next whitespace-delimited token from input and returns it.
-  // Sets |remaining_input| to everything after the first token (skipping over
-  // the first intervening whitespace).
-  // If |trim_leading_whitespace| is true then leading whitespace in
-  // |*remaining_input| will be trimmed.
-  static string16 SplitKeywordFromInput(const string16& input,
-                                        bool trim_leading_whitespace,
-                                        string16* remaining_input);
-
   // Fills in the "destination_url" and "contents" fields of |match| with the
   // provided user input and keyword data.
   static void FillInURLAndContents(
       Profile* profile,
       const string16& remaining_input,
       const TemplateURL* element,
       AutocompleteMatch* match);
 
   // Determines the relevance for some input, given its type, whether the user
   // typed the complete keyword, and whether the user is in "prefer keyword
@@ skipping 17 matching lines @@
       int relevance);
 
   void EnterExtensionKeywordMode(const std::string& extension_id);
   void MaybeEndExtensionKeywordMode();
 
   // content::NotificationObserver interface.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+  TemplateURLService* GetTemplateURLService() const;
+
   // Model for the keywords.  This is only non-null when testing, otherwise the
   // TemplateURLService from the Profile is used.
   TemplateURLService* model_;
 
   // Identifies the current input state. This is incremented each time the
   // autocomplete edit's input changes in any way. It is used to tell whether
   // suggest results from the extension are current.
   int current_input_id_;
 
   // The input state at the time we last asked the extension for suggest
   // results.
   AutocompleteInput extension_suggest_last_input_;
 
   // We remember the last suggestions we've received from the extension in case
   // we need to reset our matches without asking the extension again.
   std::vector<AutocompleteMatch> extension_suggest_matches_;
 
   // If non-empty, holds the ID of the extension whose keyword is currently in
   // the URL bar while the autocomplete popup is open.
   std::string current_keyword_extension_id_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(KeywordProvider);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_PROVIDER_H_