MacViews: Remove constrained window dependencies for certificate viewer.

chrome/browser/ui/cocoa/certificate_viewer_mac_views.mm

+// 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.
+
+#import "chrome/browser/ui/cocoa/certificate_viewer_mac.h"
+
+#include <memory>
+
+#include "chrome/browser/certificate_viewer.h"
+#include "components/constrained_window/constrained_window_views.h"
+#include "components/web_modal/web_contents_modal_dialog_manager.h"
+#include "ui/views/widget/widget.h"
+#include "ui/views/widget/widget_delegate.h"
+
+// Certificate viewer class for MacViews which handles displaying and closing
+// the Cocoa certificate viewer.
+@interface SSLCertificateViewerMacViews : SSLCertificateViewerMac {
+ @private
+  views::Widget* overlayWindow_;
+}
+
+// Closes the certificate viewer properly.
+- (void)sheetDidEnd:(NSWindow*)parent

[tapted, 2016/05/25 06:52:24]

doesn't need to be redeclared

[Patti Lor, 2016/05/31 06:00:33]

Done.

+         returnCode:(NSInteger)returnCode
+            context:(void*)context;
+
+@end
+
+// A fully transparent, borderless web-modal dialog used to display the
+// OS-provided window-modal sheet that displays certificate information.
+class CertificateAnchorWidgetDelegate : public views::WidgetDelegateView {
+ public:
+  CertificateAnchorWidgetDelegate(

[tapted, 2016/05/25 06:52:24]

nit: explicit.. but! The ownership is still a little funny.

I think we should delete `displayForWebContent`. Then ShowCertificateViewer(..)
should just be

{
  // CertificateAnchorWidgetDelegate is owned by the Widget it creates.
  new CertificateAnchorWidgetDelegate(web_contents, cert);
}

CertificateAnchorWidgetDelegate::CertificateAnchorWidgetDelegate(..) 
    : certificate_viewer_([[.. alloc] initWithCertificate:cert]) {
  [certificate_viewer_ displayForWebContents:web_conents];
  overlayWindow_ = ShowWebModalDialogWithOverlayViews(this, web_contents);
  [certificate_viewer_ showSheetforWindow:overlayWindow_->GetNativeWindow()];
}

[Patti Lor, 2016/05/31 06:00:33]

Done.

+      SSLCertificateViewerMacViews* certificate_viewer)
+      : certificate_viewer_(certificate_viewer) {}
+
+  // WidgetDelegate:
+  ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_CHILD; }
+
+ private:
+  base::scoped_nsobject<SSLCertificateViewerMacViews> certificate_viewer_;
+
+  DISALLOW_COPY_AND_ASSIGN(CertificateAnchorWidgetDelegate);
+};
+
+@implementation SSLCertificateViewerMacViews
+
+- (void)sheetDidEnd:(NSWindow*)parent
+         returnCode:(NSInteger)returnCode
+            context:(void*)context {
+  [self closeSheetWithAnimation:YES];
+  overlayWindow_->Close();  // Asynchronously releases |self|.
+  [self releaseSheetWindow];
+}
+
+- (void)displayForWebContents:(content::WebContents*)webContents {
+  [super displayForWebContents:webContents];
+
+  views::WidgetDelegateView* delegate_ =
+      new CertificateAnchorWidgetDelegate(self);
+  overlayWindow_ = constrained_window::ShowWebModalDialogWithOverlayViews(
+      delegate_, webContents);
+  [self showSheetForWindow:overlayWindow_->GetNativeWindow()];
+}
+
+@end
+
+void ShowCertificateViewer(content::WebContents* web_contents,
+                           gfx::NativeWindow parent,
+                           net::X509Certificate* cert) {
+  SSLCertificateViewerMacViews* viewer =
+      [[SSLCertificateViewerMacViews alloc] initWithCertificate:cert];
+  [viewer displayForWebContents:web_contents];
+}