Switch to standard integer types in net/.

net/url_request/url_request.h

Index: net/url_request/url_request.h
diff --git a/net/url_request/url_request.h b/net/url_request/url_request.h
index e4085fc92ed8794d234df6451617af4cd2f33ab8..ea6a54d3c47e0e55c0a2d60be33afd781996f346 100644
--- a/net/url_request/url_request.h
+++ b/net/url_request/url_request.h
@@ -12,6 +12,7 @@
 
 #include "base/debug/leak_tracker.h"
 #include "base/logging.h"
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/supports_user_data.h"
@@ -521,7 +522,7 @@ class NET_EXPORT URLRequest : NON_EXPORTED_BASE(public base::NonThreadSafe),
   const URLRequestStatus& status() const { return status_; }
 
   // Returns a globally unique identifier for this request.
-  uint64 identifier() const { return identifier_; }
+  uint64_t identifier() const { return identifier_; }
 
   // This method is called to start the request.  The delegate will receive
   // a OnResponseStarted callback when the request is started.  The request