Add a new component for WiFi credential sync. Populate the

new component with a stub SyncableService, and its
corresponding factory. This SyncableService is plumbed
into sync iff "--enable-wifi-credential-sync" is present
in the command-line.

Also:
- add sync integration tests (single client, and two client)
- add WifiSecurityClass: an enum to provide an internal
  representation of WiFi security classes (e.g. WEP, PSK).
- add WifiCredential: an abstraction of the parameters
  required to find and connect to a WiFi network
- add conversions between ModelType and NotificationType,
  for WIFI_CREDENTIALS

BUG=chromium:426693
BUG=chromium:426696
BUG=chromium:427595
TEST=sync_integration_tests --gtest_filter="*Wifi*"
TEST=components_unittests --gtest_filter="Wifi*"

Review URL: https://codereview.chromium.org/709683004

Cr-Commit-Position: refs/heads/master@{#309333}

1 files changed, 1 insertions, 0 deletions

diff --git a/components/components.gyp b/components/components.gyp
index e011a89..ba936f5 100644
--- a/components/components.gyp
+++ b/components/components.gyp
@@ -102,6 +102,7 @@
       'includes': [
         'pairing.gypi',
         'timers.gypi',
+        'wifi_sync.gypi',
       ],
     }],
     ['OS == "win" or OS == "mac"', {