update_engine: Parse and supply EOL date for Chrome
From Omaha, the optional field |_eol_date| is to indicate the EOL of a
device. Chrome side will leverage these values to display a
notification. The value for |_eol_date| should be an integer value
indicating the days from Unix Epoch date.
If |_eol_date| does not exist in the Omaha response or have non-integer
values, the default will fallback to |kEolDateInvalid|.
BUG=chromium:998983
TEST=FEATURES="test" emerge-$B update_engine update_engine-client system_api
TEST=test_that -b $B $IP autoupdate_EOL
TEST=test_that -b $B $IP autoupdate_EOL.approaching_eol
TEST=test_that -b $B $IP autoupdate_EOL.future_eol
Cq-Depend:chromium:1783596, chromium:1811116
Change-Id: I2b1063873118ccf8fe22ba09a5961e27aa980c7b
Reviewed-on: https://chromium-review.googlesource.com/1783897
Tested-by: Jae Hoon Kim <kimjae@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
diff --git a/common/constants.cc b/common/constants.cc
index 87bdf91..64bdf0c 100644
--- a/common/constants.cc
+++ b/common/constants.cc
@@ -55,6 +55,7 @@
const char kPrefsOmahaCohort[] = "omaha-cohort";
const char kPrefsOmahaCohortHint[] = "omaha-cohort-hint";
const char kPrefsOmahaCohortName[] = "omaha-cohort-name";
+const char kPrefsOmahaEolDate[] = "omaha-eol-date";
const char kPrefsOmahaEolStatus[] = "omaha-eol-status";
const char kPrefsP2PEnabled[] = "p2p-enabled";
const char kPrefsP2PFirstAttemptTimestamp[] = "p2p-first-attempt-timestamp";