Revert of Roll libvpx 269083:275816 webrtc 6352:6415

Revert of Roll libvpx 269083:275816 webrtc 6352:6415 (https://codereview.chromium.org/299313003/)

Reason for revert:
Broke compile step on http://build.chromium.org/p/chromium.linux/builders/Android%20Webview%20AOSP%20Builder/builds/12011

Compile error message:

Export includes file: external/chromium_org/GypAndroid.linux-arm.mk -- out/target/product/generic/obj/STATIC_LIBRARIES/third_party_webrtc_modules_PCM16B_gyp_intermediates/export_includes
make: *** No rule to make target `/mnt/data/b/build/slave/Android_Webview_AOSP_Builder/build/android-src/out/target/product/generic/obj/STATIC_LIBRARIES/libvpx_asm_offsets_vp8_intermediates/libvpx_asm_offsets_vp8.a', needed by `out/target/product/generic/obj/GYP/third_party_libvpx_gen_asm_offsets_vp8_gyp_intermediates/vp8_asm_enc_offsets.o'.  Stop.


Original issue's description:
> Roll libvpx 269083:275816 webrtc 6352:6415
> 
> libvpx:
> See https://codereview.chromium.org/295313002/
> https://codereview.chromium.org/298063002/
> https://codereview.chromium.org/305533008/
> https://codereview.chromium.org/305703002/
> https://codereview.chromium.org/298383003/
> https://codereview.chromium.org/302863004/
> https://codereview.chromium.org/320923003/
> for the actual changes.
> 
> webrtc:
> See https://codereview.chromium.org/313243004/
> for the actual changes.
> 
> BUG=377062
> R=ajm@chromium.org, tomfinegan@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=276820

TBR=fgalligan
NOTRY=true

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=276832

[please use gerrit instead, 2014-06-12 22:35:41]

Created Revert of Roll libvpx 269083:275816 webrtc 6352:6415

[commit-bot: I haz the power, 2014-06-12 22:37:55]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rouslan@chromium.org/330193002/1

[commit-bot: I haz the power, 2014-06-12 22:37:56]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-06-12 22:37:57]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[please use gerrit instead, 2014-06-12 22:38:59]

The CQ bit was checked by rouslan@chromium.org

[commit-bot: I haz the power, 2014-06-12 22:40:12]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rouslan@chromium.org/330193002/1

[commit-bot: I haz the power, 2014-06-12 22:42:40]

Change committed as 276832