MacViews: Enable views based External Protocol dialog behind secondary-ui-md flag.

chrome/browser/ui/cocoa/external_protocol_dialog_cocoa.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/external_protocol_dialog.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/shell_integration.h"
 #include "chrome/browser/tab_contents/tab_util.h"
+#include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/strings/grit/components_strings.h"
 #include "ui/base/l10n/l10n_util_mac.h"
+#include "ui/base/material_design/material_design_controller.h"
 #include "ui/gfx/text_elider.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 // ExternalProtocolHandler
 
 // static
 void ExternalProtocolHandler::RunExternalProtocolDialog(

[tapted, 2017/01/17 21:17:13]

I think we can move this definition to a new file
external_protocol_dialog_views_mac.mm - that way we don't have to bounce off
browser_dialogs

[karandeepb, 2017/01/24 03:23:32]

Done.

     const GURL& url, int render_process_host_id, int routing_id,
     ui::PageTransition page_transition, bool has_user_gesture) {
+  if (ui::MaterialDesignController::IsSecondaryUiMaterial()) {
+    chrome::RunExternalProtocolDialogViews(url, render_process_host_id,
+                                           routing_id, page_transition,
+                                           has_user_gesture);
+    return;
+  }
   [[ExternalProtocolDialogController alloc] initWithGURL:&url
                                      renderProcessHostId:render_process_host_id
                                                routingId:routing_id];
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // ExternalProtocolDialogController
 
 @interface ExternalProtocolDialogController(Private)
 - (void)alertEnded:(NSAlert *)alert
@@ skipping 86 matching lines @@
     content::WebContents* web_contents =
         tab_util::GetWebContentsByID(render_process_host_id_, routing_id_);
 
     ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(url_, web_contents);
   }
 
   [self autorelease];
 }
 
 @end