Move PageTransition into content namespace. While I'm touching all these files, I've also updated...

chrome/browser/history/history_backend.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_BROWSER_HISTORY_HISTORY_BACKEND_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 #pragma once
 
 #include <string>
 #include <utility>
@@ skipping 377 matching lines @@
   // Adds a single visit to the database, updating the URL information such
   // as visit and typed count. The visit ID of the added visit and the URL ID
   // of the associated URL (whether added or not) is returned. Both values will
   // be 0 on failure.
   //
   // This does not schedule database commits, it is intended to be used as a
   // subroutine for AddPage only. It also assumes the database is valid.
   std::pair<URLID, VisitID> AddPageVisit(const GURL& url,
                                          base::Time time,
                                          VisitID referring_visit,
-                                         PageTransition::Type transition,
+                                         content::PageTransition transition,
                                          VisitSource visit_source);
 
   // Returns a redirect chain in |redirects| for the VisitID
   // |cur_visit|. |cur_visit| is assumed to be valid. Assumes that
   // this HistoryBackend object has been Init()ed successfully.
   void GetRedirectsFromSpecificVisit(
       VisitID cur_visit, history::RedirectList* redirects);
 
   // Similar to the above function except returns a redirect list ending
   // at |cur_visit|.
@@ skipping 45 matching lines @@
 
   // Walks back a segment chain to find the last visit with a non null segment
   // id and returns it. If there is none found, returns 0.
   SegmentID GetLastSegmentID(VisitID from_visit);
 
   // Update the segment information. This is called internally when a page is
   // added. Return the segment id of the segment that has been updated.
   SegmentID UpdateSegments(const GURL& url,
                            VisitID from_visit,
                            VisitID visit_id,
-                           PageTransition::Type transition_type,
+                           content::PageTransition transition_type,
                            const base::Time ts);
 
   // Favicons ------------------------------------------------------------------
 
   // Used by both UpdateFaviconMappingAndFetch and GetFavicon.
   // If page_url is non-null and SetFavicon has previously been invoked for
   // icon_url the favicon url for page_url (and all redirects) is set to
   // icon_url.
   // Only a single type can be given in icon_type when page_url is specified.
   void UpdateFaviconMappingAndFetchImpl(
@@ skipping 156 matching lines @@
   // Publishes the history to all indexers which are registered to receive
   // history data from us. Can be NULL if there are no listeners.
   scoped_ptr<HistoryPublisher> history_publisher_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_