remove warnings on windows builds

[GoogleCodeExporter]

vp8 has some minor warnings

denoising.c
59>.\source\libvpx\vp8\encoder\denoising.c(255) : warning C4018: '<=' : 
signed/unsigned mismatch
59>.\source\libvpx\vp8\encoder\denoising.c(256) : warning C4018: '<' : 
signed/unsigned mismatch
jump to
________Compiling build\dbg\obj\xmpp\pubsubtasks_unittest.obj
59>.\source\libvpx\vp8\encoder\onyx_if.c(4915) : warning C4018: '<' : 
signed/unsigned mismatch
jump to
pickinter.c
59>.\source\libvpx\vp8\encoder\pickinter.c(458) : warning C4018: '<' : 
signed/unsigned mismatch
jump to
rdopt.c
59>.\source\libvpx\vp8\encoder\rdopt.c(1779) : warning C4018: '<' : 
signed/unsigned mismatch
jump to
bitstream.c
59>.\source\libvpx\vp8\encoder\bitstream.c(175) : warning C4114: same type 
qualifier used more than once
jump to
ratectrl.c
59>.\source\libvpx\vp8\encoder\ratectrl.c(426) : warning C4018: '>' : 
signed/unsigned mismatch
jump to
entropy.c
59>.\source\libvpx\vp8\common\entropy.c(104) : warning C4114: same type 
qualifier used more than once
jump to
sad_c.c
59>.\source\libvpx\vp8\common\sad_c.c(37) : warning C4018: '>' : 
signed/unsigned mismatch
jump to
entropymode.c
59>.\source\libvpx\vp8\common\entropymode.c(53) : warning C4114: same type 
qualifier used more than once
jump to
onyxd_if.c
59>.\source\libvpx\vp8\decoder\onyxd_if.c(303) : warning C4090: 'function' : 
different 'const' qualifiers
jump to
decodframe.c
59>.\source\libvpx\vp8\decoder\decodframe.c(571) : warning C4018: '<' : 
signed/unsigned mismatch
jump to
decodemv.c
59>.\source\libvpx\vp8\decoder\decodemv.c(647) : warning C4018: '<' : 
signed/unsigned mismatch
jump to
vp8_cx_iface.c
59>.\source\libvpx\vp8\vp8_cx_iface.c(233) : warning C4018: '<' : 
signed/unsigned mismatch
jump to

http://b/issue?id=7007018

Original issue reported on code.google.com by jimbankoski@google.com on 17 Aug 2012 at 2:35

[GoogleCodeExporter]

VC9 build showed many more warnings, hope 
https://gerrit.chromium.org/gerrit/#/c/30710/
clear them all out. 

Original comment by ya...@google.com on 17 Aug 2012 at 5:12

[GoogleCodeExporter]

Original comment by ya...@google.com on 17 Aug 2012 at 5:13

• Changed state: Fixed