Move KeywordProvider to components/omnibox

chrome/browser/autocomplete/keyword_extensions_delegate.h

-// Copyright 2014 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.
-//
-// KeywordExtensionsDelegate contains the extensions-only logic used by
-// KeywordProvider.
-// This file contains the dummy implementation of KeywordExtensionsDelegate,
-// which does nothing.
-
-#ifndef CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_H_
-#define CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/macros.h"
-#include "base/strings/string16.h"
-
-class AutocompleteInput;
-class KeywordProvider;
-class TemplateURL;
-
-class KeywordExtensionsDelegate {
- public:
-  explicit KeywordExtensionsDelegate(KeywordProvider* provider);
-  virtual ~KeywordExtensionsDelegate();
-
-  // Increments the input ID used to identify if the suggest results from an
-  // extension are current.
-  virtual void IncrementInputId();
-
-  // Returns true if an extension is enabled.
-  virtual bool IsEnabledExtension(const std::string& extension_id);
-
-  // Handles the extensions portion of KeywordProvider::Start().
-  // Depending on |minimal_changes| and whether |input| wants matches
-  // synchronous or not, either updates the KeywordProvider's matches with
-  // the existing suggestions or asks the |template_url|'s extension to provide
-  // matches.
-  // Returns true if this delegate should stay in extension keyword mode.
-  virtual bool Start(const AutocompleteInput& input,
-                     bool minimal_changes,
-                     const TemplateURL* template_url,
-                     const base::string16& remaining_input);
-
-  // Tells the extension with |extension_id| that the user typed the omnibox
-  // keyword.
-  virtual void EnterExtensionKeywordMode(const std::string& extension_id);
-
-  // If an extension previously entered extension keyword mode, exits extension
-  // keyword mode. This happens when the user has cleared the keyword or closed
-  // the omnibox popup.
-  virtual void MaybeEndExtensionKeywordMode();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(KeywordExtensionsDelegate);
-};
-
-#endif  // CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_H_