Fix chrome.usb control transfer.

Fix chrome.usb control transfer.

Incorrect data size check prevented API from returning data received
from USB device and it returned uninitialized data instead.

BUG=368176
TEST=manually tested with USBASP as target device

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=267116

[pfeldman, 2014-04-29 10:06:37]

lgtm

[Ken Rockot(use gerrit already), 2014-04-29 15:32:49]

Thanks, this is a nice catch. LGTM.

[Ken Rockot(use gerrit already), 2014-04-29 15:32:54]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2014-04-29 15:33:30]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/khautio@gmail.com/252153002/1

[commit-bot: I haz the power, 2014-04-29 16:29:43]

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

[commit-bot: I haz the power, 2014-04-29 16:29:43]

Try jobs failed on following builders:
  win_chromium_compile_dbg on tryserver.chromium

[kha, 2014-04-29 18:58:38]

On 2014/04/29 16:29:43, I haz the power (commit-bot) wrote:
> Try jobs failed on following builders:
>   win_chromium_compile_dbg on tryserver.chromium

Seems builder is broken, found this from logs 

svn: Can't open file 'LayoutTests\fast\media\.svn\entries': The file or
directory is corrupted and unreadable

[Ken Rockot(use gerrit already), 2014-04-29 19:17:41]

On 2014/04/29 18:58:38, kha wrote:
> On 2014/04/29 16:29:43, I haz the power (commit-bot) wrote:
> > Try jobs failed on following builders:
> >   win_chromium_compile_dbg on tryserver.chromium
> 
> Seems builder is broken, found this from logs 
> 
> svn: Can't open file 'LayoutTests\fast\media\.svn\entries': The file or
> directory is corrupted and unreadable

Yep. It'll get through eventually

[Ken Rockot(use gerrit already), 2014-04-29 19:17:45]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2014-04-29 19:19:15]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/khautio@gmail.com/252153002/1

[commit-bot: I haz the power, 2014-04-29 21:44:20]

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

[commit-bot: I haz the power, 2014-04-29 21:44:20]

Try jobs failed on following builders:
  linux_chromium_chromeos_rel on tryserver.chromium

[Ken Rockot(use gerrit already), 2014-04-29 21:45:18]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2014-04-29 21:47:56]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/khautio@gmail.com/252153002/1

[commit-bot: I haz the power, 2014-04-29 23:20:25]

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

[commit-bot: I haz the power, 2014-04-29 23:20:26]

Try jobs failed on following builders:
  linux_chromium_rel on tryserver.chromium

[Ken Rockot(use gerrit already), 2014-04-29 23:26:03]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2014-04-29 23:27:58]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/khautio@gmail.com/252153002/1

[commit-bot: I haz the power, 2014-04-30 07:21:19]

Change committed as 267116