[Mac] Enable MacViews site settings bubble behind --enable-mac-views-dialogs.

chrome/browser/ui/views/browser_dialogs_views_mac.cc

+// Copyright 2015 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/browser_dialogs.h"
+
+#include "chrome/browser/ui/views/website_settings/website_settings_popup_view.h"
+#include "content/public/browser/web_contents_observer.h"
+#include "ui/views/widget/widget_observer.h"
+
+// This file provides definitions of desktop browser dialog-creation methods for
+// Mac where a Cocoa browser is using Views dialogs.
+
+namespace {
+
+// Closes the bubble when the parent WebContents is destroyed since there is no
+// anchor Widget for the BubbleDelegateView to observe. Owns itself.
+// TODO(jackhou): Make this adapter manage a Widget that is a child window of
+// BrowserWindowCocoa. This is needed for bubbles that can stay open, e.g.
+// extensions.
+class BubbleAnchorAdapter : public views::WidgetObserver,

[tapted, 2015/08/17 05:15:03]

(as discussed, I think we can get rid of the adapter with a call to
BubbleDelegateView::set_parent_view before Widget::Init gets called --
NativeWidgetMac has machinery to observe its parent being closed. 

But...

[tapted, 2015/08/17 05:15:45]

uhh set_parent_window(..) that is.

[jackhou1, 2015/08/17 05:42:36]

Done.

+                            public content::WebContentsObserver {
+ public:
+  BubbleAnchorAdapter(const gfx::Point& anchor_point,
+                      Profile* profile,
+                      content::WebContents* web_contents,
+                      const GURL& url,
+                      const content::SSLStatus& ssl) {
+    views::BubbleDelegateView* bubble_view =
+        WebsiteSettingsPopupView::ShowPopupAtRect(
+            gfx::Rect(anchor_point, gfx::Size()), profile, web_contents, url,
+            ssl);
+    widget_ = bubble_view->GetWidget();
+    widget_->AddObserver(this);
+    Observe(web_contents);
+  }
+
+  ~BubbleAnchorAdapter() override {}
+
+  // WidgetObserver:
+  void OnWidgetDestroyed(views::Widget* widget) override { delete this; }
+
+  // content::WebContentsObserver:
+  void WebContentsDestroyed() override { widget_->Close(); }
+
+ private:
+  views::Widget* widget_;
+
+  DISALLOW_COPY_AND_ASSIGN(BubbleAnchorAdapter);
+};
+
+}  // namespace
+
+namespace chrome {
+
+void ShowWebsiteSettingsBubbleViewsAtPoint(const gfx::Point& anchor_point,
+                                           Profile* profile,
+                                           content::WebContents* web_contents,
+                                           const GURL& url,
+                                           const content::SSLStatus& ssl) {
+  new BubbleAnchorAdapter(anchor_point, profile, web_contents, url, ssl);
+}
+
+}  // namespace chrome