Switch to standard integer types in chrome/browser/, part 4 of 4.

chrome/browser/sync_file_system/local/sync_file_system_backend.h

Index: chrome/browser/sync_file_system/local/sync_file_system_backend.h
diff --git a/chrome/browser/sync_file_system/local/sync_file_system_backend.h b/chrome/browser/sync_file_system/local/sync_file_system_backend.h
index 4b47e2873b423e69cb858f8d7f8503bddaf034d6..043f995ba22367afd6bb1e35fc1ab932ba2892c0 100644
--- a/chrome/browser/sync_file_system/local/sync_file_system_backend.h
+++ b/chrome/browser/sync_file_system/local/sync_file_system_backend.h
@@ -5,6 +5,9 @@
 #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_
 
+#include <stdint.h>
+
+#include "base/macros.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync_file_system/sync_callbacks.h"
 #include "chrome/browser/sync_file_system/sync_status_code.h"
@@ -49,13 +52,13 @@ class SyncFileSystemBackend : public storage::FileSystemBackend {
       storage::FileSystemType type) const override;
   scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
       const storage::FileSystemURL& url,
-      int64 offset,
-      int64 max_bytes_to_read,
+      int64_t offset,
+      int64_t max_bytes_to_read,
       const base::Time& expected_modification_time,
       storage::FileSystemContext* context) const override;
   scoped_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
       const storage::FileSystemURL& url,
-      int64 offset,
+      int64_t offset,
       storage::FileSystemContext* context) const override;
   storage::FileSystemQuotaUtil* GetQuotaUtil() override;
   const storage::UpdateObserverList* GetUpdateObservers(