Move web modal dialog manager files into the constrained_window component.

components/constrained_window/native_web_contents_modal_dialog_manager_views.h

 // Copyright 2016 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.
 
-#ifndef CHROME_BROWSER_UI_VIEWS_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
-#define CHROME_BROWSER_UI_VIEWS_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
+#ifndef COMPONENTS_CONSTRAINED_WINDOW_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
+#define COMPONENTS_CONSTRAINED_WINDOW_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
 
 #include <set>
 
 #include "base/macros.h"
 #include "components/web_modal/modal_dialog_host.h"
 #include "components/web_modal/single_web_contents_dialog_manager.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace views {
 class Widget;
 }
 
+namespace constrained_window {
+
 // Class for parenting a tab-modal views dialog off of a views browser.
 class NativeWebContentsModalDialogManagerViews
     : public web_modal::SingleWebContentsDialogManager,
       public web_modal::ModalDialogHostObserver,
       public views::WidgetObserver {
  public:
   NativeWebContentsModalDialogManagerViews(
       gfx::NativeWindow dialog,
       web_modal::SingleWebContentsDialogManagerDelegate* native_delegate);
 
@@ skipping 36 matching lines @@
   web_modal::SingleWebContentsDialogManagerDelegate* native_delegate_;
   gfx::NativeWindow dialog_;
   web_modal::WebContentsModalDialogHost* host_;
   bool host_destroying_;
   std::set<views::Widget*> observed_widgets_;
   std::set<views::Widget*> shown_widgets_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWebContentsModalDialogManagerViews);
 };
 
-#endif  // CHROME_BROWSER_UI_VIEWS_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
+}  // namespace constrained_window
+
+#endif  // COMPONENTS_CONSTRAINED_WINDOW_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_