[MD] Fix clipping of infobar child elements (particularly close button).

chrome/browser/ui/views/infobars/confirm_infobar.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/infobars/confirm_infobar.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "chrome/browser/infobars/infobar_service.h"
@@ skipping 49 matching lines @@
     cancel_button_->SetPosition(gfx::Point(x, OffsetY(cancel_button_)));
 
   link_->SetPosition(gfx::Point(EndX() - link_->width(), OffsetY(link_)));
 }
 
 void ConfirmInfoBar::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (details.is_add && details.child == this && (label_ == NULL)) {
     ConfirmInfoBarDelegate* delegate = GetDelegate();
     label_ = CreateLabel(delegate->GetMessageText());
-    AddChildView(label_);
+    AddViewToContentArea(label_);
 
     if (delegate->GetButtons() & ConfirmInfoBarDelegate::BUTTON_OK) {
       if (delegate->OKButtonTriggersUACPrompt()) {
         // Use a label button even in MD mode as MD buttons don't support icons.
         views::LabelButton* ok_button = CreateLabelButton(
             this, delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_OK));
         elevation_icon_setter_.reset(new ElevationIconSetter(
             ok_button,
             base::Bind(&ConfirmInfoBar::Layout, base::Unretained(this))));
         ok_button_ = ok_button;
       } else {
         ok_button_ = CreateTextButton(
             this, delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_OK));
       }
-      AddChildView(ok_button_);
+      AddViewToContentArea(ok_button_);
       ok_button_->SizeToPreferredSize();
     }
 
     if (delegate->GetButtons() & ConfirmInfoBarDelegate::BUTTON_CANCEL) {
       cancel_button_ = CreateTextButton(
           this,
           delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_CANCEL));
-      AddChildView(cancel_button_);
+      AddViewToContentArea(cancel_button_);
       cancel_button_->SizeToPreferredSize();
     }
 
     base::string16 link_text(delegate->GetLinkText());
     link_ = CreateLink(link_text, this);
-    AddChildView(link_);
+    AddViewToContentArea(link_);
   }
 
   // This must happen after adding all other children so InfoBarView can ensure
   // the close button is the last child.
   InfoBarView::ViewHierarchyChanged(details);
 }
 
 void ConfirmInfoBar::ButtonPressed(views::Button* sender,
                                    const ui::Event& event) {
   if (!owner())
@@ skipping 28 matching lines @@
 }
 
 int ConfirmInfoBar::NonLabelWidth() const {
   int width = (label_->text().empty() || (!ok_button_ && !cancel_button_)) ?
       0 : kEndOfLabelSpacing;
   if (ok_button_)
     width += ok_button_->width() + (cancel_button_ ? kButtonButtonSpacing : 0);
   width += cancel_button_ ? cancel_button_->width() : 0;
   return width + ((link_->text().empty() || !width) ? 0 : kEndOfLabelSpacing);
 }