Refactor ChooserDialogView to use borders instead of content margins.

chrome/browser/ui/views/constrained_web_dialog_delegate_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/webui/constrained_web_dialog_delegate_base.h"
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/browser_dialogs.h"
@@ skipping 196 matching lines @@
   }
   views::Widget* GetWidget() override { return View::GetWidget(); }
   const views::Widget* GetWidget() const override { return View::GetWidget(); }
   base::string16 GetWindowTitle() const override {
     return impl_->closed_via_webui() ? base::string16() :
         GetWebDialogDelegate()->GetDialogTitle();
   }
   views::View* GetContentsView() override { return this; }
   views::NonClientFrameView* CreateNonClientFrameView(
       views::Widget* widget) override {
-    return views::DialogDelegate::CreateDialogFrameView(widget, gfx::Insets());
+    return views::DialogDelegate::CreateDialogFrameView(widget);
   }
   bool ShouldShowCloseButton() const override {
     // No close button if the dialog doesn't want a title bar.
     return impl_->GetWebDialogDelegate()->ShouldShowDialogTitle();
   }
   ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_CHILD; }
 
   // views::WebView:
   bool AcceleratorPressed(const ui::Accelerator& accelerator) override {
     // Pressing ESC closes the dialog.
@@ skipping 86 matching lines @@
           min_size, max_size);
 
   // For embedded WebContents, use the embedder's WebContents for constrained
   // window.
   content::WebContents* top_level_web_contents =
       constrained_window::GetTopLevelWebContents(web_contents);
   DCHECK(top_level_web_contents);
   constrained_window::CreateWebModalDialogViews(dialog, top_level_web_contents);
   return dialog;
 }