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

chrome/browser/ui/views/tabs/browser_tab_strip_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/ui/views/tabs/browser_tab_strip_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 // TODO(alicet): clean up dependencies on defaults.h and max tab count.
 #include "chrome/browser/defaults.h"
@@ skipping 260 matching lines @@
   if (index != -1 && !drop_before) {
     hover_tab_selector_.StartTabTransition(index);
   } else {
     hover_tab_selector_.CancelTabTransition();
   }
 }
 
 void BrowserTabStripController::PerformDrop(bool drop_before,
                                             int index,
                                             const GURL& url) {
-  browser::NavigateParams params(browser_, url, PageTransition::LINK);
+  browser::NavigateParams params(
+      browser_, url, content::PAGE_TRANSITION_LINK);
   params.tabstrip_index = index;
 
   if (drop_before) {
     UserMetrics::RecordAction(UserMetricsAction("Tab_DropURLBetweenTabs"));
     params.disposition = NEW_FOREGROUND_TAB;
   } else {
     UserMetrics::RecordAction(UserMetricsAction("Tab_DropURLOnTab"));
     params.disposition = CURRENT_TAB;
     params.source_contents = model_->GetTabContentsAt(index);
   }
@@ skipping 175 matching lines @@
 
 void BrowserTabStripController::StopHighlightTabsForCommand(
     TabStripModel::ContextMenuCommand command_id,
     BaseTab* tab) {
   if (command_id == TabStripModel::CommandCloseTabsToRight ||
       command_id == TabStripModel::CommandCloseOtherTabs) {
     // Just tell all Tabs to stop pulsing - it's safe.
     tabstrip_->StopAllHighlighting();
   }
 }