Remove unused |context| from GetDefaultParent().

content/shell/browser/shell_views.cc

 // Copyright 2013 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 "content/shell/browser/shell.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 385 matching lines @@
     content_size_ = gfx::Size(width, height);
     if (!platform_)
       platform_ = new ShellPlatformDataAura(content_size_);
     else
       platform_->ResizeWindow(content_size_);
     return;
   }
 #if defined(OS_CHROMEOS)
   window_widget_ = views::Widget::CreateWindowWithContextAndBounds(
       new ShellWindowDelegateView(this),
-      wm_test_helper_->GetDefaultParent(NULL, NULL, gfx::Rect()),
+      wm_test_helper_->GetDefaultParent(nullptr, gfx::Rect()),
       gfx::Rect(0, 0, width, height));
 #else
   window_widget_ = new views::Widget;
   views::Widget::InitParams params;
   params.bounds = gfx::Rect(0, 0, width, height);
   params.delegate = new ShellWindowDelegateView(this);
   params.wm_class_class = "chromium-content_shell";
   params.wm_class_name = params.wm_class_class;
   window_widget_->Init(params);
 #endif
@@ skipping 41 matching lines @@
 void Shell::PlatformSetTitle(const base::string16& title) {
   if (headless_)
     return;
   ShellWindowDelegateView* delegate_view =
     static_cast<ShellWindowDelegateView*>(window_widget_->widget_delegate());
   delegate_view->SetWindowTitle(title);
   window_widget_->UpdateWindowTitle();
 }
 
 }  // namespace content