chrome: Put browser_navigator.h into chrome namespace.

chrome/browser/extensions/extension_host.cc

 // Copyright (c) 2012 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/extensions/extension_host.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/memory/singleton.h"
@@ skipping 575 matching lines @@
     }
   }
 
   // Find a browser with a profile that matches the new tab. If none is found,
   // NULL argument to NavigateParams is valid.
   Profile* profile =
       Profile::FromBrowserContext(new_contents->GetBrowserContext());
   Browser* browser = browser::FindTabbedBrowser(
       profile, false);  // Match incognito exactly.
   TabContents* tab_contents = new TabContents(new_contents);
-  browser::NavigateParams params(browser, tab_contents);
+  chrome::NavigateParams params(browser, tab_contents);
 
   // The extension_app_id parameter ends up as app_name in the Browser
   // which causes the Browser to return true for is_app().  This affects
   // among other things, whether the location bar gets displayed.
   // TODO(mpcomplete): This seems wrong. What if the extension content is hosted
   // in a tab?
   if (disposition == NEW_POPUP)
     params.extension_app_id = extension_id_;
 
   if (!browser)
     params.profile = profile;
   params.disposition = disposition;
   params.window_bounds = initial_pos;
-  params.window_action = browser::NavigateParams::SHOW_WINDOW;
+  params.window_action = chrome::NavigateParams::SHOW_WINDOW;
   params.user_gesture = user_gesture;
-  browser::Navigate(&params);
+  chrome::Navigate(&params);
 }
 
 void ExtensionHost::RenderViewReady() {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_EXTENSION_HOST_CREATED,
       content::Source<Profile>(profile_),
       content::Details<ExtensionHost>(this));
 }