Roll src/third_party/cros_system_api/ ec6d4902f..0eac64e18 (8 commits)

https://chromium.googlesource.com/chromiumos/platform/system_api.git/+log/ec6d4902f36c..0eac64e18aba

$ git log ec6d4902f..0eac64e18 --date=short --no-merges --format='%ad %ae %s'
2018-07-09 phongo Un-deprecate supervision_transition field.
2018-07-10 dgreid vm_concierge: Add an export message
2018-07-09 baileyberro system_api: Add StartCopy and ContinueCopy to SmbProvider constants
2018-07-06 tbarzic Add is_demo_session to UpgradeArcContainerRequest
2018-06-26 hychao service_constants: Add GetSystemAecSupported method
2018-06-28 baileyberro system_api: Add Smb Copy Errors
2018-06-22 zachr vm_cicerone: add debug information constants
2018-05-22 xzhou cryptohome: add nvspace bootlockbox protos

Created with:
  roll-dep src/third_party/cros_system_api

Change-Id: I1d4d9f055c3fd9e4dbca69755fb3d40a162e0448
Reviewed-on: https://chromium-review.googlesource.com/1137056Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Toni Barzic <tbarzic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575106}

DEPS

@@ -565,7 +565,7 @@ deps = {
 
   # For Linux and Chromium OS.
   'src/third_party/cros_system_api': {
-      'url': Var('chromium_git') + '/chromiumos/platform/system_api.git' + '@' + 'ec6d4902f36cabef3ad932c79530ac34b55e831a',
+      'url': Var('chromium_git') + '/chromiumos/platform/system_api.git' + '@' + '0eac64e18aba24402a21b7372b512a63830d71ec',
       'condition': 'checkout_linux',
   },