[chrome/browser/local_discovery] favor DCHECK_CURRENTLY_ON for better logs

chrome/browser/local_discovery/service_discovery_shared_client.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 "chrome/browser/local_discovery/service_discovery_shared_client.h"
 
 #include "content/public/browser/browser_thread.h"
 
 #if defined(OS_WIN)
 #include "base/files/file_path.h"
@@ skipping 57 matching lines @@
 
 ServiceDiscoverySharedClient::~ServiceDiscoverySharedClient() {
   DCHECK_EQ(g_service_discovery_client, this);
   g_service_discovery_client = NULL;
 }
 
 #if defined(ENABLE_MDNS) || defined(OS_MACOSX)
 
 scoped_refptr<ServiceDiscoverySharedClient>
     ServiceDiscoverySharedClient::GetInstance() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (g_service_discovery_client)
     return g_service_discovery_client;
 
 #if defined(OS_WIN)
   if (!g_is_firewall_state_reported) {
     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                             base::Bind(&ReportFirewallStats));
   }
 #endif  // OS_WIN
 
 #if defined(OS_MACOSX)
   return ServiceDiscoveryClientMacFactory::CreateInstance();
 #else  // OS_MACOSX
 
   return new ServiceDiscoveryClientMdns();
 #endif  // OS_MACOSX
 }
 
 // static
 void ServiceDiscoverySharedClient::GetInstanceWithoutAlert(
     const GetInstanceCallback& callback) {
 #if !defined(OS_WIN)
 
   scoped_refptr<ServiceDiscoverySharedClient> result = GetInstance();
   return callback.Run(result);
 
 #else   // OS_WIN
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   // TODO(vitalybuka): Switch to |ServiceDiscoveryClientMdns| after we find what
   // to do with firewall for user-level installs. crbug.com/366408
   scoped_refptr<ServiceDiscoverySharedClient> result =
       g_service_discovery_client;
   if (result.get())
     return callback.Run(result);
 
   if (!g_is_firewall_state_reported) {
     BrowserThread::PostTaskAndReply(
         BrowserThread::FILE,
         FROM_HERE,
         base::Bind(&ReportFirewallStats),
         base::Bind(&ServiceDiscoverySharedClient::GetInstanceWithoutAlert,
                    callback));
     return;
   }
 
   result =
       g_is_firewall_ready ? GetInstance() : new ServiceDiscoveryClientUtility();
   callback.Run(result);
 #endif  // OS_WIN
 }
 
 #else
 
 scoped_refptr<ServiceDiscoverySharedClient>
     ServiceDiscoverySharedClient::GetInstance() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   NOTIMPLEMENTED();
   return NULL;
 }
 
 #endif  // ENABLE_MDNS
 
 }  // namespace local_discovery