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

BUG=557422
[email protected]

Review URL: https://codereview.chromium.org/1544293002

Cr-Commit-Position: refs/heads/master@{#366905}
diff --git a/content/app/content_main_runner.cc b/content/app/content_main_runner.cc
index 2085018..a686b02 100644
--- a/content/app/content_main_runner.cc
+++ b/content/app/content_main_runner.cc
@@ -7,8 +7,8 @@
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
-
 #include <string>
+#include <utility>
 
 #include "base/allocator/allocator_extension.h"
 #include "base/at_exit.h"
@@ -286,7 +286,7 @@
   }
 
   // This function call can return multiple times, once per fork().
-  if (!ZygoteMain(main_function_params, zygote_fork_delegates.Pass()))
+  if (!ZygoteMain(main_function_params, std::move(zygote_fork_delegates)))
     return 1;
 
   if (delegate) delegate->ZygoteForked();