Fix build break.

Review URL: https://codereview.appspot.com/5934055

git-svn-id: http://skia.googlecode.com/svn/trunk@3523 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/ports/SkOSFile_stdio.cpp b/src/ports/SkOSFile_stdio.cpp
index 1fc7d6a..1254394 100644
--- a/src/ports/SkOSFile_stdio.cpp
+++ b/src/ports/SkOSFile_stdio.cpp
@@ -45,7 +45,7 @@
     if (size < 0) {
         size = 0;
     }
-    ::fseek((FILE*)f, SEEK_SET);        // go back to our prev loc
+    ::fseek((FILE*)f, curr, SEEK_SET);        // go back to our prev loc
     return size;
 }