Revert "NaCl: Update revision in DEPS, r6275 -> r6299" since it breaks the Chrome build.

.DEPS.git

 # DO NOT EDIT. THIS IS A GENERATED FILE.
 # ALL MANUAL CHANGES WILL BE OVERWRITTEN.
 vars = {
     'webkit_url':
          'http://git.chromium.org/external/WebKit_trimmed.git',
     'git_url':
          'http://git.chromium.org',
     'webkit_rev':
          '@5a69d9815c125200629b432c4960edfcaea0d6bc'
 }
 
 deps = {
     'src/breakpad/src':
         Var('git_url') + '/external/google-breakpad/src.git@c4991b63bb2a825d8eaf2b63b8d04b321e11741a',
     'src/build/util/support':
         Var('git_url') + '/chromium/support.git@9306628dc48b26b6264fc32a09bd5f926fec7218',
     'src/chrome/test/data/extensions/api_test/permissions/nacl_enabled/bin':
         Var('git_url') + '/native_client/src/native_client/tests/prebuilt.git@3e17365176c94624f46cace174f61834b7f3c35d',
     'src/chrome/test/data/perf/frame_rate/content':
         Var('git_url') + '/chromium/frame_rate/content.git@c10272c88463efeef6bb19c9ec07c42bc8fe22b9',
     'src/googleurl':
         Var('git_url') + '/external/google-url.git@290665e5ec3f648c6d94f0a4e2d0f1c603f65b84',
     'src/native_client':
-        Var('git_url') + '/native_client/src/native_client.git@f397228052b04dfeefccc774762ef0a44d4dca33',
+        Var('git_url') + '/native_client/src/native_client.git@76d8efcfe38b0c03bc7f1022d78e54add6468d62',
     'src/native_client/src/third_party/ppapi':
         Var('git_url') + '/chromium/src/ppapi.git@9c715e4b7592baa0aed34059c6b29cee21d361f6',
     'src/sdch/open-vcdiff':
         Var('git_url') + '/external/open-vcdiff.git@f1dd933c4e47a65889b4bba2a5f58b12aac53383',
     'src/seccompsandbox':
         Var('git_url') + '/external/seccompsandbox.git@b651c4aa47dc094e930075f6e0baea947641699b',
     'src/testing/gmock':
         Var('git_url') + '/external/googlemock.git@1de8831515fed5d6c86989c6c021f08abd2c37a5',
     'src/testing/gtest':
         Var('git_url') + '/external/googletest.git@a2965825b1953c7b8ad292f726eb5c3f2659d5d3',
@@ skipping 159 matching lines @@
 ],
     'pattern':
          '.'
 },
     {
     'action':
          [
     'python',
     'src/build/download_nacl_irt.py',
     '--nacl_revision',
-    '6299',
+    '6275',
     '--file_hash',
     'x86_32',
-    '10df0b6f680232576432cadbec94a4af632cf948',
+    'e4ac7d67449703cdb33b5f1fa33f4364a32192e1',
     '--file_hash',
     'x86_64',
-    'a54389c2917fabe257358ace75d0b7d8cd4611ea'
+    '380e57ec6dcb6c27e2a6b81fef547147571581ab'
 ],
     'pattern':
          '.'
 }
 ]