Remove extraneous namespaces

mojo/examples/browser/browser.cc

 // Copyright 2014 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 "base/basictypes.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "mojo/common/common_type_converters.h"
 #include "mojo/examples/window_manager/window_manager.mojom.h"
 #include "mojo/public/cpp/application/application_connection.h"
@@ skipping 207 matching lines @@
     view_manager_ = NULL;
     base::MessageLoop::current()->Quit();
   }
 
   // views::TextfieldController:
   virtual bool HandleKeyEvent(views::Textfield* sender,
                               const ui::KeyEvent& key_event) OVERRIDE {
     if (key_event.key_code() == ui::VKEY_RETURN) {
       GURL url(sender->text());
       printf("User entered this URL: %s\n", url.spec().c_str());
-      navigation::NavigationDetailsPtr nav_details(
-          navigation::NavigationDetails::New());
+      NavigationDetailsPtr nav_details(NavigationDetails::New());
       nav_details->url = String::From(url);
       navigator_host_->RequestNavigate(view_manager_->GetRoots().front()->id(),
-                                       navigation::TARGET_NEW_NODE,
+                                       TARGET_NEW_NODE,
                                        nav_details.Pass());
     }
     return false;
   }
 
   // NodeObserver:
   virtual void OnNodeFocusChanged(Node* gained_focus,
                                   Node* lost_focus) OVERRIDE {
     aura::client::FocusClient* focus_client =
         aura::client::GetFocusClient(widget_->GetNativeView());
     if (lost_focus == root_)
       focus_client->FocusWindow(NULL);
     else if (gained_focus == root_)
       focus_client->FocusWindow(widget_->GetNativeView());
   }
   virtual void OnNodeDestroyed(Node* node) OVERRIDE {
     DCHECK_EQ(root_, node);
     node->RemoveObserver(this);
     root_ = NULL;
   }
 
   scoped_ptr<ViewsInit> views_init_;
 
   ViewManager* view_manager_;
   ViewManagerClientFactory view_manager_client_factory_;
   Node* root_;
   views::Widget* widget_;
-  navigation::NavigatorHostPtr navigator_host_;
+  NavigatorHostPtr navigator_host_;
   IWindowManagerPtr window_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 }  // namespace examples
 
 // static
 ApplicationDelegate* ApplicationDelegate::Create() {
   return new examples::Browser;
 }
 
 }  // namespace mojo