Make module enumeration a low priority background task.

chrome/browser/ui/webui/conflicts_ui.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/ui/webui/conflicts_ui.h"
 
 #if defined(OS_WIN)
 
 #include <string>
 
@@ skipping 104 matching lines @@
 
 void ConflictsDOMHandler::HandleRequestModuleList(const base::ListValue* args) {
   // The request is handled asynchronously, and will callback via
   // OnScanCompleted on completion.
   auto* model = EnumerateModulesModel::GetInstance();
 
   // The JS shouldn't be abusive and call 'requestModuleList' twice, but it's
   // easy enough to defend against this.
   if (!observer_.IsObserving(model)) {
     observer_.Add(model);
-    model->ScanNow();
+
+    // Ask the scan to be performed immediately, and not in background mode.
+    // This ensures the results are available ASAP for the UI.
+    model->ScanNow(false);
   }
 }
 
 void ConflictsDOMHandler::SendModuleList() {
   auto* loaded_modules = EnumerateModulesModel::GetInstance();
   base::ListValue* list = loaded_modules->GetModuleList();
   base::DictionaryValue results;
   results.Set("moduleList", list);
 
   // Add the section title and the total count for bad modules found.
@@ skipping 40 matching lines @@
 
 // static
 base::RefCountedMemory* ConflictsUI::GetFaviconResourceBytes(
       ui::ScaleFactor scale_factor) {
   return static_cast<base::RefCountedMemory*>(
       ResourceBundle::GetSharedInstance().LoadDataResourceBytesForScale(
           IDR_CONFLICT_FAVICON, scale_factor));
 }
 
 #endif