Remove omnibox_search_hint.(cc,h).

chrome/browser/omnibox_search_hint.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_OMNIBOX_SEARCH_HINT_H_
-#define CHROME_BROWSER_OMNIBOX_SEARCH_HINT_H_
-
-#include "base/compiler_specific.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "content/public/browser/web_contents_user_data.h"
-
-class Profile;
-
-namespace content {
-class WebContents;
-}
-
-// This class is responsible for showing an info-bar that tells the user she
-// can type her search query directly in the omnibox.
-// It is displayed when the user visits a known search engine URL and has not
-// searched from the omnibox before, or has not previously dismissed a similar
-// info-bar.
-class OmniboxSearchHint
-    : public content::NotificationObserver,
-      public content::WebContentsUserData<OmniboxSearchHint> {
- public:
-  virtual ~OmniboxSearchHint();
-
-  // content::NotificationObserver method:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
-  // Focus the location bar and displays a message instructing that search
-  // queries can be typed directly in there.
-  void ShowEnteringQuery();
-
-  // Disables the hint infobar permanently, so that it does not show ever again.
-  void DisableHint();
-
-  // Returns true if the profile and current environment make the showing of the
-  // hint infobar possible.
-  static bool IsEnabled(Profile* profile);
-
- private:
-  explicit OmniboxSearchHint(content::WebContents* web_contents);
-  friend class content::WebContentsUserData<OmniboxSearchHint>;
-
-  content::NotificationRegistrar notification_registrar_;
-
-  // The contents we are associated with.
-  content::WebContents* web_contents_;
-
-  DISALLOW_COPY_AND_ASSIGN(OmniboxSearchHint);
-};
-
-#endif  // CHROME_BROWSER_OMNIBOX_SEARCH_HINT_H_