Fixed proxy settings button behaviour: it becomes disabled when device isn't connected to any netwo…

ash/shell.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 "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accelerators/focus_manager_factory.h"
@@ skipping 433 matching lines @@
     if (observer)
       observer->OnBluetoothRefresh();
   }
 
   virtual void ShowOtherWifi() OVERRIDE {
   }
 
   virtual void ShowOtherCellular() OVERRIDE {
   }
 
+  virtual bool IsNetworkConnected() OVERRIDE {
+    return true;
+  }
+
   virtual bool GetWifiAvailable() OVERRIDE {
     return true;
   }
 
   virtual bool GetMobileAvailable() OVERRIDE {
     return true;
   }
 
   virtual bool GetBluetoothAvailable() OVERRIDE {
     return true;
@@ skipping 490 matching lines @@
     panel_container->SetLayoutManager(panel_layout_manager_);
   }
 }
 
 void Shell::DisableWorkspaceGridLayout() {
   if (workspace_controller_.get())
     workspace_controller_->workspace_manager()->set_grid_size(0);
 }
 
 }  // namespace ash