Implement WebContentsModalDialogManagerDelegate for ShellWindow

chrome/browser/ui/views/constrained_window_views.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/browser/ui/views/constrained_window_views.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/utf_string_conversions.h"
@@ skipping 74 matching lines @@
     : public views::WidgetObserver,
       public WebContentsModalDialogHostObserver {
  public:
   WebContentsModalDialogHostObserverViews(
       WebContentsModalDialogHost* host,
       views::Widget* target_widget,
       const char *const native_window_property)
       : host_(host),
         target_widget_(target_widget),
         native_window_property_(native_window_property) {
+    DCHECK(host_);
+    DCHECK(target_widget_);
     host_->AddObserver(this);
     target_widget_->AddObserver(this);
   }
 
   virtual ~WebContentsModalDialogHostObserverViews() {
     host_->RemoveObserver(this);
     target_widget_->RemoveObserver(this);
     target_widget_->SetNativeWindowProperty(native_window_property_,
                                             NULL);
   }
@@ skipping 556 matching lines @@
   if (views::DialogDelegate::UseNewStyle())
     return views::DialogDelegate::CreateNewStyleFrameView(widget);
 #if defined(USE_ASH)
   ConstrainedWindowFrameViewAsh* frame = new ConstrainedWindowFrameViewAsh;
   frame->Init(widget);
   return frame;
 #endif
   return new ConstrainedWindowFrameView(widget,
                                         browser_context->IsOffTheRecord());
 }