Convert WindowOpenDisposition to an enum class.

content/shell/browser/shell.cc

 // Copyright 2013 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 "content/shell/browser/shell.h"
 
 #include <stddef.h>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 295 matching lines @@
 
 gfx::NativeView Shell::GetContentView() {
   if (!web_contents_)
     return NULL;
   return web_contents_->GetNativeView();
 }
 
 WebContents* Shell::OpenURLFromTab(WebContents* source,
                                    const OpenURLParams& params) {
   // This implementation only handles CURRENT_TAB.
-  if (params.disposition != CURRENT_TAB)
+  if (params.disposition != WindowOpenDisposition::CURRENT_TAB)
     return nullptr;
 
   NavigationController::LoadURLParams load_url_params(params.url);
   load_url_params.source_site_instance = params.source_site_instance;
   load_url_params.transition_type = params.transition;
   load_url_params.frame_tree_node_id = params.frame_tree_node_id;
   load_url_params.referrer = params.referrer;
   load_url_params.redirect_chain = params.redirect_chain;
   load_url_params.extra_headers = params.extra_headers;
   load_url_params.is_renderer_initiated = params.is_renderer_initiated;
@@ skipping 135 matching lines @@
   if (entry)
     PlatformSetTitle(entry->GetTitle());
 }
 
 void Shell::OnDevToolsWebContentsDestroyed() {
   devtools_observer_.reset();
   devtools_frontend_ = NULL;
 }
 
 }  // namespace content