fix location of warning disable for leveldb

Was added in wrong location in
https://chromiumcodereview.appspot.com/10384092/ and apparently not very
thoroughly tested. :/

R=thakis@chromium.org
BUG=126483
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/10414027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@138272 0039d316-1c4b-4281-b951-d872f2087c98

third_party/leveldatabase/leveldatabase.gyp

@@ -55,6 +55,9 @@
             'include_dirs': [
               'src/port/win',
             ],
+          }],
+        ],
+      },
       # Patch posted for upstream, can be removed once that's landed and
       # rolled into Chromium.
       # Internal link: https://mondrian.corp.google.com/#review/29997992
@@ -62,9 +65,6 @@
         # Signed/unsigned comparison.
         4018,
       ],
-          }],
-        ],
-      },
       'sources': [
         # Include and then exclude so that all files show up in IDEs, even if
         # they don't build.