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

chrome/browser/chromeos/login/registration_screen.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/registration_screen.h"
 
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/input_method/input_method_manager.h"
@@ skipping 107 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 // RegistrationScreen, TabContentsDelegate implementation:
 
 // TODO(adriansc): Remove this method once refactoring changed all call sites.
 TabContents* RegistrationScreen::OpenURLFromTab(
     TabContents* source,
     const GURL& url,
     const GURL& referrer,
     WindowOpenDisposition disposition,
-    PageTransition::Type transition) {
+    content::PageTransition transition) {
   return OpenURLFromTab(source,
                         OpenURLParams(url, referrer, disposition, transition));
 }
 
 TabContents* RegistrationScreen::OpenURLFromTab(TabContents* source,
                                                 const OpenURLParams& params) {
   if (params.url.spec() == kRegistrationSuccessUrl) {
     source->Stop();
     VLOG(1) << "Registration form completed.";
     CloseScreen(ScreenObserver::REGISTRATION_SUCCESS);
@@ skipping 31 matching lines @@
 }
 
 // static
 net::URLRequestJob* RegistrationScreen::Factory(net::URLRequest* request,
                                                 const std::string& scheme) {
   VLOG(1) << "Handling url: " << request->url().spec().c_str();
   return new net::URLRequestAboutJob(request);
 }
 
 }  // namespace chromeos