Cleanup for refactored ActivityStatus.

R=yfriedman
BUG=

Review URL: https://codereview.chromium.org/24795004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228834 0039d316-1c4b-4281-b951-d872f2087c98
[PPAPI] It is now valid to store PP_Resource 0 in a ResourceVar.

Making a resource var from PP_Resource 0 results in an empty resource
var, instead of a null var. Fixed handling of NULL Resources in
PluginResourceVar.

BUG=177017

Review URL: https://codereview.chromium.org/26273008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228835 0039d316-1c4b-4281-b951-d872f2087c98
Roll swarm_client @ 228254.

$ git log $(git svn find-rev r224429)..$(git svn find-rev r228254) --date=short --format="%ad %an %s" | sed 's/@chromium\.org//'
2013-10-11 vadimsh Use isolatestorage.Storage class in swarming.py instead of url_open calls.
2013-10-08 vadimsh Avoid uploading same content multiple times in upload_tree.
2013-10-04 maruel Create swarming load test.
2013-10-03 vadimsh Refactor fetch implementation in isolateserver.py.
2013-10-02 maruel Make Progress support an arbitrary number of columns.
2013-10-02 maruel Add ThreadPool.abort() to stop processing early.
2013-10-01 vadimsh Monkey patch httplib on python <=2.6.2 to make it work with 'requests' library.
2013-10-01 maruel Rename load_test to isolateserver_load_test and fix from r226265.
2013-10-01 vadimsh Update 'requests' lib to v2.0.
2013-10-01 maruel Fix running 'import run_isolated' at python interactive prompt.
2013-10-01 maruel Improve Progress.update_item() to make it simpler to understand.
2013-10-01 vadimsh Client side implementation of new /content-gs isolate protocol.
2013-09-26 maruel Move file path functions into utils/file_path.py.
2013-09-26 vadimsh Add unit tests for Storage class.
2013-09-25 vadimsh Refactor upload_tree method.
2013-09-24 vadimsh TaskChannel helper class to pass task results from thread pool tasks.
2013-09-22 vadimsh Make get_http_service recognize Google Storage domains.

R=maruel@chromium.org
BUG=

Review URL: https://codereview.chromium.org/26704005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228836 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228835
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228837 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228836
SVN changes up to revision 228837