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

chrome/browser/ui/webui/web_ui_browsertest.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/web_ui_browsertest.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 168 matching lines @@
                                      const std::string& preload_test_name) {
   // Remember for callback OnJsInjectionReady().
   preload_test_fixture_ = preload_test_fixture;
   preload_test_name_ = preload_test_name;
 
   TestNavigationObserver navigation_observer(
       Source<NavigationController>(
           &browser()->GetSelectedTabContentsWrapper()->controller()),
       this, 1);
   browser::NavigateParams params(
-      browser(), GURL(browse_to), PageTransition::TYPED);
+      browser(), GURL(browse_to), content::PAGE_TRANSITION_TYPED);
   params.disposition = CURRENT_TAB;
   browser::Navigate(&params);
   navigation_observer.WaitForObservation();
 }
 
 void WebUIBrowserTest::BrowsePrintPreload(
     const GURL& browse_to,
     const std::string& preload_test_fixture,
     const std::string& preload_test_name) {
   // Remember for callback OnJsInjectionReady().
@@ skipping 395 matching lines @@
 // testDone directly and expect pass result.
 IN_PROC_BROWSER_TEST_F(WebUIBrowserAsyncTest, TestTestDoneEarlyPassesAsync) {
   ASSERT_TRUE(RunJavascriptAsyncTest("testDone"));
 }
 
 // Test that calling testDone during RunJavascriptTest still completes when
 // waiting for async result.
 IN_PROC_BROWSER_TEST_F(WebUIBrowserAsyncTest, TestTestDoneEarlyPasses) {
   ASSERT_TRUE(RunJavascriptTest("testDone"));
 }