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

chrome/browser/ui/webui/sync_promo_handler.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/ui/webui/sync_promo_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/prefs/pref_service.h"
@@ skipping 107 matching lines @@
 void SyncPromoHandler::ShowSetupUI() {
   ProfileSyncService* service =
       Profile::FromWebUI(web_ui_)->GetProfileSyncService();
   service->get_wizard().Step(SyncSetupWizard::GetLoginState());
 }
 
 void SyncPromoHandler::HandleCloseSyncPromo(const base::ListValue* args) {
   CloseSyncSetup();
   web_ui_->tab_contents()->OpenURL(GURL(chrome::kChromeUINewTabURL),
                                    GURL(), CURRENT_TAB,
-                                   PageTransition::LINK);
+                                   content::PAGE_TRANSITION_LINK);
 }
 
 void SyncPromoHandler::HandleInitializeSyncPromo(const base::ListValue* args) {
   OpenSyncSetup();
   // We don't need to compute anything for this, just do this every time.
   RecordUserFlowAction(extension_misc::SYNC_PROMO_VIEWED);
   // Increment view count first and show natural numbers in stats rather than 0
   // based starting point (if it happened to be our first time showing this).
   IncrementViewCountBy(1);
   // Record +1 for every view.  This is the only thing we record that's not part
   // of the user flow histogram.
   UMA_HISTOGRAM_COUNTS("SyncPromo.NumTimesViewed", GetViewCount());
 }
 
 void SyncPromoHandler::HandleShowAdvancedSettings(
     const base::ListValue* args) {
   CloseSyncSetup();
   std::string url(chrome::kChromeUISettingsURL);
   url += chrome::kSyncSetupSubPage;
   web_ui_->tab_contents()->OpenURL(GURL(url), GURL(), CURRENT_TAB,
-                                   PageTransition::LINK);
+                                   content::PAGE_TRANSITION_LINK);
 }
 
 void SyncPromoHandler::HandleUserFlowAction(const base::ListValue* args) {
   double action_double;
   CHECK(args->GetDouble(0, &action_double));
   int action = static_cast<int>(action_double);
   if (action >= extension_misc::SYNC_PROMO_FIRST_VALID_JS_ACTION &&
       action <= extension_misc::SYNC_PROMO_LAST_VALID_JS_ACTION) {
     RecordUserFlowAction(action);
   } else {
@@ skipping 15 matching lines @@
   int adjusted = GetViewCount() + amount;
   prefs_->SetInteger(prefs::kSyncPromoViewCount, adjusted);
   return adjusted;
 }
 
 void SyncPromoHandler::RecordUserFlowAction(int action) {
   // Send an enumeration to our single user flow histogram.
   UMA_HISTOGRAM_ENUMERATION("SyncPromo.UserFlow", action,
                             extension_misc::SYNC_PROMO_BUCKET_BOUNDARY);
 }