libvpx: Fix generated asm offsets.

libvpx: Fix generated asm offsets.

The first issue was that unpack_lib_posix target did not have the
correct input set. The next major issue was if the generated asm
offset file was changed, the assembly files dependent on the
generated file were not being assembled.

This change also removes two search paths, where the generated asm
offsets were being written. The two paths removed were for older
targets, that are not valid anymore.

BUG=377062
TBR=tomfinegan@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=272641

[fgalligan, 2014-05-24 00:01:03]

Committed patchset #1 manually as r272641 (presubmit successful).

[Tom Finegan, 2014-05-24 00:21:16]

On 2014/05/24 00:01:11, fgalligan1 wrote:

lgtm [rubber stamp]

[michaelbai, 2014-05-24 00:29:09]

The WebRTC also use unpack_lib_posix.gypi
https://code.google.com/p/chromium/codesearch#search/&q=unpack_lib_posix.gypi...

Did you update them?

https://codereview.chromium.org/295313002/diff/1/unpack_lib_posix.gypi
File unpack_lib_posix.gypi (left):

https://codereview.chromium.org/295313002/diff/1/unpack_lib_posix.gypi#oldcode39
unpack_lib_posix.gypi:39: 'unpack_lib_posix.sh',
I believe the unpack_lib_posix.sh should also be here, otherwise the target will
not be regenerated if the  unpack_lib_posix.sh changed.

[fgalligan1, 2014-05-24 00:48:11]

I didn't know about the other projects using the unpack target. I will update
them as well.

https://codereview.chromium.org/295313002/diff/1/unpack_lib_posix.gypi
File unpack_lib_posix.gypi (left):

https://codereview.chromium.org/295313002/diff/1/unpack_lib_posix.gypi#oldcode39
unpack_lib_posix.gypi:39: 'unpack_lib_posix.sh',
On 2014/05/24 00:29:10, michaelbai wrote:
> I believe the unpack_lib_posix.sh should also be here, otherwise the target
will
> not be regenerated if the  unpack_lib_posix.sh changed.

OK I will add this back.