[Privet FS] Allow files to be able to be copied in to the privet filesystem

Allow files to be able to be copied in to the privet filesystem

This CL adds the ability to copy files in to the privet filesystem from outside
the privet filesystem. It does not address ordering/safety issues, which are
still somewhat minimal when copying whole files in. These will be addressed
later.

BUG=332182

[Vitaly Buka (NO REVIEWS), 2014-03-04 19:39:00]

https://codereview.chromium.org/177373010/diff/1/chrome/browser/local_discove...
File chrome/browser/local_discovery/storage/privet_filesystem_operations.cc
(right):

https://codereview.chromium.org/177373010/diff/1/chrome/browser/local_discove...
chrome/browser/local_discovery/storage/privet_filesystem_operations.cc:864:
overwrite_operation_->Start();
start twice?

[Noam Samuel, 2014-03-04 20:10:30]

https://codereview.chromium.org/177373010/diff/1/chrome/browser/local_discove...
File chrome/browser/local_discovery/storage/privet_filesystem_operations.cc
(right):

https://codereview.chromium.org/177373010/diff/1/chrome/browser/local_discove...
chrome/browser/local_discovery/storage/privet_filesystem_operations.cc:864:
overwrite_operation_->Start();
On 2014/03/04 19:39:00, Vitaly Buka wrote:
> start twice?

Done.

[Vitaly Buka (NO REVIEWS), 2014-03-04 20:12:23]

lgtm

[Noam Samuel, 2014-04-02 18:29:45]

Review #4