Convert Pass()→std::move() in //content

content/shell/browser/shell_net_log.cc

Index: content/shell/browser/shell_net_log.cc
diff --git a/content/shell/browser/shell_net_log.cc b/content/shell/browser/shell_net_log.cc
index 7ecc5e8b7dc6ab444a48df4c254b8a6f9418fa6d..6e00a3c3f0bbb2ccfec35202b08ae3165e6d335e 100644
--- a/content/shell/browser/shell_net_log.cc
+++ b/content/shell/browser/shell_net_log.cc
@@ -5,6 +5,7 @@
 #include "content/shell/browser/shell_net_log.h"
 
 #include <stdio.h>
+#include <utility>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ -65,8 +66,8 @@ ShellNetLog::ShellNetLog(const std::string& app_name) {
     } else {
       scoped_ptr<base::Value> constants(GetShellConstants(app_name));
       write_to_file_observer_.reset(new net::WriteToFileNetLogObserver());
-      write_to_file_observer_->StartObserving(this, file.Pass(),
-                                      constants.get(), nullptr);
+      write_to_file_observer_->StartObserving(this, std::move(file),
+                                              constants.get(), nullptr);
     }
   }
 }