chrome: Put browser_navigator.h into chrome namespace.

chrome/browser/extensions/api/web_navigation/web_navigation_apitest.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/app/chrome_command_ids.h"
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
@@ skipping 249 matching lines @@
       << message_;
 
   WebContents* tab = chrome::GetActiveWebContents(browser());
   ui_test_utils::WaitForLoadStop(tab);
 
   ResultCatcher catcher;
 
   GURL url = test_server()->GetURL(
       "files/extensions/api_test/webnavigation/targetBlank/a.html");
 
-  browser::NavigateParams params(browser(), url, content::PAGE_TRANSITION_LINK);
+  chrome::NavigateParams params(browser(), url, content::PAGE_TRANSITION_LINK);
   ui_test_utils::NavigateToURL(&params);
 
   // There's a link with target=_blank on a.html. Click on it to open it in a
   // new tab.
   WebKit::WebMouseEvent mouse_event;
   mouse_event.type = WebKit::WebInputEvent::MouseDown;
   mouse_event.button = WebKit::WebMouseEvent::ButtonLeft;
   mouse_event.x = 7;
   mouse_event.y = 7;
   mouse_event.clickCount = 1;
@@ skipping 34 matching lines @@
   mouse_event.y = 7;
   mouse_event.clickCount = 1;
   tab->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
   mouse_event.type = WebKit::WebInputEvent::MouseUp;
   tab->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
 
   ASSERT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
 }  // namespace extensions