Move Singleton and related structs to namespace base

chrome/browser/safe_browsing/srt_fetcher_win.cc

 // Copyright 2015 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/safe_browsing/srt_fetcher_win.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
@@ skipping 137 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(SRTFetcher);
 };
 
 // This class tries to run the reporter and reacts to its exit code. It
 // schedules subsequent runs as needed, or retries as soon as a browser is
 // available when none is on first try.
 class ReporterRunner : public chrome::BrowserListObserver {
  public:
   static ReporterRunner* GetInstance() {
-    return Singleton<ReporterRunner,
-                     LeakySingletonTraits<ReporterRunner>>::get();
+    return base::Singleton<ReporterRunner,
+                           base::LeakySingletonTraits<ReporterRunner>>::get();
   }
 
   // Starts the sequence of attempts to run the reporter.
   void Run(const base::FilePath& exe_path, const std::string& version) {
     DCHECK_CURRENTLY_ON(BrowserThread::UI);
     exe_path_ = exe_path;
     version_ = version;
     TryToRun();
   }
 
  private:
-  friend struct DefaultSingletonTraits<ReporterRunner>;
+  friend struct base::DefaultSingletonTraits<ReporterRunner>;
   ReporterRunner() {}
   ~ReporterRunner() override {}
 
   // BrowserListObserver.
   void OnBrowserSetLastActive(Browser* browser) override {}
   void OnBrowserRemoved(Browser* browser) override {}
   void OnBrowserAdded(Browser* browser) override {
     DCHECK(browser);
     if (browser->host_desktop_type() == chrome::GetActiveDesktop()) {
       MaybeFetchSRT(browser);
@@ skipping 163 matching lines @@
 };
 
 }  // namespace
 
 void RunSwReporter(const base::FilePath& exe_path, const std::string& version) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   ReporterRunner::GetInstance()->Run(exe_path, version);
 }
 
 }  // namespace safe_browsing