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

chrome/test/base/in_process_browser_test.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/test/base/in_process_browser_test.h"
 
 #include "base/command_line.h"
 #include "base/debug/stack_trace.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 170 matching lines @@
 
 void InProcessBrowserTest::TearDown() {
   DCHECK(!g_browser_process);
   BrowserTestBase::TearDown();
 }
 
 void InProcessBrowserTest::AddTabAtIndexToBrowser(
     Browser* browser,
     int index,
     const GURL& url,
-    PageTransition::Type transition) {
+    content::PageTransition transition) {
   browser::NavigateParams params(browser, url, transition);
   params.tabstrip_index = index;
   params.disposition = NEW_FOREGROUND_TAB;
   browser::Navigate(&params);
 }
 
 void InProcessBrowserTest::AddTabAtIndex(
     int index,
     const GURL& url,
-    PageTransition::Type transition) {
+    content::PageTransition transition) {
   AddTabAtIndexToBrowser(browser(), index, url, transition);
 }
 
 bool InProcessBrowserTest::SetUpUserDataDirectory() {
   return true;
 }
 
 // Creates a browser with a single tab (about:blank), waits for the tab to
 // finish loading and shows the browser.
 Browser* InProcessBrowserTest::CreateBrowser(Profile* profile) {
@@ skipping 14 matching lines @@
   Browser* browser = Browser::CreateForType(Browser::TYPE_POPUP, profile);
   AddBlankTabAndShow(browser);
   return browser;
 }
 
 void InProcessBrowserTest::AddBlankTabAndShow(Browser* browser) {
   ui_test_utils::WindowedNotificationObserver observer(
       content::NOTIFICATION_LOAD_STOP,
       NotificationService::AllSources());
   browser->AddSelectedTabWithURL(
-      GURL(chrome::kAboutBlankURL), PageTransition::START_PAGE);
+      GURL(chrome::kAboutBlankURL), content::PAGE_TRANSITION_START_PAGE);
   observer.Wait();
 
   browser->window()->Show();
 }
 
 #if defined(OS_POSIX)
 // On SIGTERM (sent by the runner on timeouts), dump a stack trace (to make
 // debugging easier) and also exit with a known error code (so that the test
 // framework considers this a failure -- http://crbug.com/57578).
 static void DumpStackTraceSignalHandler(int signal) {
@@ skipping 45 matching lines @@
     return;
 
   // Invoke CloseAllBrowsersAndMayExit on a running message loop.
   // CloseAllBrowsersAndMayExit exits the message loop after everything has been
   // shut down properly.
   MessageLoopForUI::current()->PostTask(
       FROM_HERE,
       NewRunnableFunction(&BrowserList::AttemptExit));
   ui_test_utils::RunMessageLoop();
 }