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

chrome/browser/extensions/extension_garbage_collector.cc

 // Copyright 2014 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/extensions/extension_garbage_collector.h"
 
 #include "base/bind.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
@@ skipping 141 matching lines @@
                                   base::FileEnumerator::DIRECTORIES);
 
   for (base::FilePath extension_path = enumerator.Next();
        !extension_path.empty();
        extension_path = enumerator.Next()) {
     CheckExtensionDirectory(extension_path, extension_paths);
   }
 }
 
 void ExtensionGarbageCollector::GarbageCollectExtensions() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
   ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(context_);
   DCHECK(extension_prefs);
 
   if (extension_prefs->pref_service()->ReadOnly())
     return;
 
   if (crx_installs_in_progress_ > 0) {
     // Don't garbage collect while there are installations in progress,
     // which may be using the temporary installation directory. Try to garbage
@@ skipping 25 matching lines @@
   if (!service->GetFileTaskRunner()->PostTask(
           FROM_HERE,
           base::Bind(&GarbageCollectExtensionsOnFileThread,
                      service->install_directory(),
                      extension_paths))) {
     NOTREACHED();
   }
 }
 
 void ExtensionGarbageCollector::GarbageCollectIsolatedStorageIfNeeded() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
   ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(context_);
   DCHECK(extension_prefs);
   if (!extension_prefs->NeedsStorageGarbageCollection())
     return;
   extension_prefs->SetNeedsStorageGarbageCollection(false);
 
   scoped_ptr<base::hash_set<base::FilePath> > active_paths(
       new base::hash_set<base::FilePath>());
   scoped_ptr<ExtensionSet> extensions =
@@ skipping 33 matching lines @@
     // accounting.
     NOTREACHED();
 
     // Don't let the count go negative to avoid garbage collecting when
     // an install is actually in progress.
     crx_installs_in_progress_ = 0;
   }
 }
 
 }  // namespace extensions