Move most of the remaining users of WebContentsObserver::tab_contents() to use web_contents().

chrome/common/chrome_notification_types.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.
 
 #ifndef CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #define CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #pragma once
 
 #include "content/public/browser/notification_types.h"
 
@@ skipping 30 matching lines @@
   // will shut down). Note that the boolean pointed to by details is only
   // valid for the duration of this call.
   NOTIFICATION_BROWSER_CLOSED,
 
   // Indicates that a top window has been closed.  The source is the HWND
   // that was closed, no details are expected.
   NOTIFICATION_WINDOW_CLOSED,
 
   // Sent when the language (English, French...) for a page has been detected.
   // The details Details<std::string> contain the ISO 639-1 language code and
-  // the source is Source<TabContents>.
+  // the source is Source<WebContents>.
   NOTIFICATION_TAB_LANGUAGE_DETERMINED,
 
   // Sent when a page has been translated. The source is the tab for that page
-  // (Source<TabContents>) and the details are the language the page was
+  // (Source<WebContents>) and the details are the language the page was
   // originally in and the language it was translated to
   // (std::pair<std::string, std::string>).
   NOTIFICATION_PAGE_TRANSLATED,
 
   // Sent after the renderer returns a snapshot of tab contents.
   // The source (Source<content::WebContents>) is the RenderViewHost for which
   // the snapshot was generated and the details (Details<const SkBitmap>) is
   // the actual snapshot.
   NOTIFICATION_TAB_SNAPSHOT_TAKEN,
 
@@ skipping 943 matching lines @@
   // Currently only Content and Chrome define and use notifications.
   // Custom notifications not belonging to Content and Chrome should start
   // from here.
   NOTIFICATION_CHROME_END,
 };
 
 }  // namespace chrome
 
 
 #endif  // CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_