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

chrome/browser/plugins/plugin_finder.cc

 // 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.
 
 #include "chrome/browser/plugins/plugin_finder.h"
 
 #include "base/bind.h"
 #include "base/json/json_reader.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 148 matching lines @@
 }
 
 // static
 PluginFinder* PluginFinder::GetInstance() {
   // PluginFinder::GetInstance() is the only method that's allowed to call
   // Singleton<PluginFinder>::get().
   return Singleton<PluginFinder>::get();
 }
 
 PluginFinder::PluginFinder() : version_(-1) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 }
 
 void PluginFinder::Init() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   // Load the built-in plugin list first. If we have a newer version stored
   // locally or download one, we will replace this one with it.
   scoped_ptr<base::DictionaryValue> plugin_list(LoadBuiltInPluginList());
 
   // Gracefully handle the case where we couldn't parse the built-in plugin list
   // for some reason (https://crbug.com/388560). TODO(bauerb): Change back to a
   // DCHECK once we have gathered more data about the underlying problem.
   if (!plugin_list)
     return;
 
@@ skipping 178 matching lines @@
     metadata->AddMatchingMimeType(plugin.mime_types[i].mime_type);
 
   DCHECK(metadata->MatchesPlugin(plugin));
   if (identifier_plugin_.find(identifier) != identifier_plugin_.end())
     identifier = GetLongIdentifier(plugin);
 
   DCHECK(identifier_plugin_.find(identifier) == identifier_plugin_.end());
   identifier_plugin_[identifier] = metadata;
   return metadata->Clone();
 }