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

chrome/browser/instant/instant_controller.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/instant/instant_controller.h"
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/rand_util.h"
@@ skipping 24 matching lines @@
 #include "views/widget/widget.h"
 #endif
 
 InstantController::InstantController(Profile* profile,
                                      InstantDelegate* delegate)
     : delegate_(delegate),
       tab_contents_(NULL),
       is_active_(false),
       is_displayable_(false),
       commit_on_mouse_up_(false),
-      last_transition_type_(PageTransition::LINK),
+      last_transition_type_(content::PAGE_TRANSITION_LINK),
       ALLOW_THIS_IN_INITIALIZER_LIST(destroy_factory_(this)) {
   PrefService* service = profile->GetPrefs();
   if (service &&
       InstantFieldTrial::GetGroup(profile) == InstantFieldTrial::INACTIVE) {
     // kInstantEnabledOnce was added after instant, set it now to make sure it
     // is correctly set.
     service->SetBoolean(prefs::kInstantEnabledOnce, true);
   }
 }
 
@@ skipping 384 matching lines @@
     delegate_->ShowInstant(loader_->preview_contents());
     NotificationService::current()->Notify(
         chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN,
         Source<InstantController>(this),
         NotificationService::NoDetails());
   }
 }
 
 void InstantController::UpdateLoader(const TemplateURL* template_url,
                                      const GURL& url,
-                                     PageTransition::Type transition_type,
+                                     content::PageTransition transition_type,
                                      const string16& user_text,
                                      bool verbatim,
                                      string16* suggested_text) {
   loader_->SetOmniboxBounds(omnibox_bounds_);
   loader_->Update(tab_contents_, template_url, url, transition_type, user_text,
                   verbatim, suggested_text);
   UpdateIsDisplayable();
 }
 
 bool InstantController::ShouldUseInstant(const AutocompleteMatch& match) {
@@ skipping 42 matching lines @@
   if (destroy_factory_.empty()) {
     MessageLoop::current()->PostTask(
         FROM_HERE, destroy_factory_.NewRunnableMethod(
             &InstantController::DestroyLoaders));
   }
 }
 
 void InstantController::DestroyLoaders() {
   loaders_to_destroy_.reset();
 }