Switch to standard integer types in mojo/.

mojo/fetcher/update_fetcher.cc

Index: mojo/fetcher/update_fetcher.cc
diff --git a/mojo/fetcher/update_fetcher.cc b/mojo/fetcher/update_fetcher.cc
index 9cf570ea3314aaaa71baa499de771bd7ec6ad8a2..39f30915fe647e3474df29f956c96eb4e526b144 100644
--- a/mojo/fetcher/update_fetcher.cc
+++ b/mojo/fetcher/update_fetcher.cc
@@ -4,6 +4,9 @@
 
 #include "mojo/fetcher/update_fetcher.h"
 
+#include <stddef.h>
+#include <stdint.h>
+
 #include <utility>
 
 #include "base/bind.h"
@@ -53,7 +56,7 @@ URLResponsePtr UpdateFetcher::AsURLResponse(base::TaskRunner* task_runner,
   response->url = String::From(url_);
   DataPipe data_pipe;
   response->body = std::move(data_pipe.consumer_handle);
-  int64 file_size;
+  int64_t file_size;
   if (base::GetFileSize(path_, &file_size)) {
     response->headers = Array<HttpHeaderPtr>(1);
     HttpHeaderPtr header = HttpHeader::New();