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

chrome/browser/geolocation/chrome_geolocation_permission_context_unittest.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 <set>
 #include <string>
 
 #include "base/memory/scoped_vector.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
@@ skipping 156 matching lines @@
   GeolocationMsg_PermissionSet::Param param;
   GeolocationMsg_PermissionSet::Read(message, &param);
   EXPECT_EQ(bridge_id, param.a);
   EXPECT_EQ(allowed, param.b);
   process->sink().ClearMessages();
 }
 
 void GeolocationPermissionContextTests::AddNewTab(const GURL& url) {
   TabContents* new_tab =
       new TabContents(profile(), NULL, MSG_ROUTING_NONE, NULL, NULL);
-  new_tab->controller().LoadURL(url, GURL(), PageTransition::TYPED,
+  new_tab->controller().LoadURL(url, GURL(), content::PAGE_TRANSITION_TYPED,
                                 std::string());
   static_cast<TestRenderViewHost*>(new_tab->render_manager_for_testing()->
       current_host())->SendNavigate(extra_tabs_.size() + 1, url);
   extra_tabs_.push_back(new TabContentsWrapper(new_tab));
 }
 
 void GeolocationPermissionContextTests::CheckTabContentsState(
     const GURL& requesting_frame,
     ContentSetting expected_content_setting) {
   TabSpecificContentSettings* content_settings =
@@ skipping 340 matching lines @@
   // Ensure only one infobar is created.
   ASSERT_EQ(1U, infobar_tab_helper()->infobar_count());
   ConfirmInfoBarDelegate* infobar_0 = infobar_tab_helper()->
       GetInfoBarDelegateAt(0)->AsConfirmInfoBarDelegate();
   ASSERT_TRUE(infobar_0);
 
   // Delete the tab contents.
   DeleteContents();
   infobar_0->InfoBarClosed();
 }