Replace uint32 with uint32_t.
Replace uint32 with uint32_t.

First, this is in line with NPString, next, this is in line with the rest of the file.

Finally, I was lucky to have a toolchain where npapi.h does not define uint32 at all, thus toolchain failed to compile this file. I still can't figure out how that different npapi.h can appear, but even unrelated to this the fix seems useful.

Review URL: http://codereview.chromium.org/2843045

git-svn-id: e22621a84199d42b34715cdc089545aeedbbf23f@457 050acbb0-2703-11df-ab0a-9f3f633ae91d

sbc100/nativeclient-sdk,sbc100/nativeclient-sdk,sbc100/nativeclient-sdk,sbc100/nativeclient-sdk,sbc100/nativeclient-sdk,sbc100/nativeclient-sdk,sbc100/nativeclient-sdk