p2p: Add P2PManager class
This class makes it simple to use p2p both as a client and a server.
For now, this feature is hidden behind a flag. The intent is that this
flag can be toggled with the crosh command - for now, only the reading
of the flag is implemented - see chromium:260441 for the remaining
work.
BUG=chromium:260426,chromium:260441
TEST=New unit tests + unit tests pass
Change-Id: If1879f4535c8e7e3af7c6d378e6df4054264b794
Reviewed-on: https://chromium-review.googlesource.com/64824
Reviewed-by: David Zeuthen <zeuthen@chromium.org>
Commit-Queue: David Zeuthen <zeuthen@chromium.org>
Tested-by: David Zeuthen <zeuthen@chromium.org>
diff --git a/constants.h b/constants.h
index 7b3dca9..66c12e7 100644
--- a/constants.h
+++ b/constants.h
@@ -41,6 +41,7 @@
extern const char kPrefsManifestMetadataSize[];
extern const char kPrefsNumReboots[];
extern const char kPrefsNumResponsesSeen[];
+extern const char kPrefsP2PEnabled[];
extern const char kPrefsPayloadAttemptNumber[];
extern const char kPrefsPreviousVersion[];
extern const char kPrefsResumedUpdateFailures[];