Revert 235752 "Fix chrome upload with content uri"

Revert 235752 "Fix chrome upload with content uri"

> Fix chrome upload with content uri
> 
> For android, the upload file dialog returns files with content uri scheme(content://).
> This CL makes it possible for upload to work with this new file type.
> It fixes both the form and fileapi based uploads.
> 
> The CL follows the same code path used by regular file upload and the content url is encompassed by a FilePath object.
> 
> R=jar@chromium.org, joth@chromium.org, kinuko@chromium.org, mmenke@chromium.org, tsepez@chromium.org
> TBR=yfriedman
> BUG=278640
> 
> Review URL: https://codereview.chromium.org/46303005

TBR=qinmin@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=235760

[qinmin, 2013-11-18 18:11:00]

Committed patchset #1 manually as r235760.