Componentize FaviconService and FaviconHandler

chrome/browser/favicon/favicon_tab_helper_observer.h

Index: chrome/browser/favicon/favicon_tab_helper_observer.h
diff --git a/chrome/browser/favicon/favicon_tab_helper_observer.h b/chrome/browser/favicon/favicon_tab_helper_observer.h
deleted file mode 100644
index 7e28b5e9bdb6e0beaaef100428fea7d0db0dfba3..0000000000000000000000000000000000000000
--- a/chrome/browser/favicon/favicon_tab_helper_observer.h
+++ /dev/null
@@ -1,24 +0,0 @@
-// 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.
-
-#ifndef CHROME_BROWSER_FAVICON_FAVICON_TAB_HELPER_OBSERVER_H_
-#define CHROME_BROWSER_FAVICON_FAVICON_TAB_HELPER_OBSERVER_H_
-
-namespace gfx {
-class Image;
-}
-
-// An observer implemented by classes which are interested in envent in
-// FaviconTabHelper.
-class FaviconTabHelperObserver {
- public:
-  // Called when favicon |image| is retrieved from either web site or history
-  // backend.
-  virtual void OnFaviconAvailable(const gfx::Image& image) = 0;
-
- protected:
-  virtual ~FaviconTabHelperObserver() {}
-};
-
-#endif  // CHROME_BROWSER_FAVICON_FAVICON_TAB_HELPER_OBSERVER_H_