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, 7 insertions, 0 deletions

diff --git a/sync/syncable/model_type.cc b/sync/syncable/model_type.cc
index 321d546..c7a4aa5 100644
--- a/sync/syncable/model_type.cc
+++ b/sync/syncable/model_type.cc
@@ -937,6 +937,7 @@ const char kSupervisedUserSharedSettingNotificationType[] =
 const char kSupervisedUserWhitelistNotificationType[] =
     "MANAGED_USER_WHITELIST";
 const char kArticleNotificationType[] = "ARTICLE";
+const char kWifiCredentialNotificationType[] = "WIFI_CREDENTIAL";
 }  // namespace
 
 bool RealModelTypeToNotificationType(ModelType model_type,
@@ -1032,6 +1033,9 @@ bool RealModelTypeToNotificationType(ModelType model_type,
     case ARTICLES:
       *notification_type = kArticleNotificationType;
       return true;
+    case WIFI_CREDENTIALS:
+      *notification_type = kWifiCredentialNotificationType;
+      return true;
     default:
       break;
   }
@@ -1132,6 +1136,9 @@ bool NotificationTypeToRealModelType(const std::string& notification_type,
   } else if (notification_type == kArticleNotificationType) {
     *model_type = ARTICLES;
     return true;
+  } else if (notification_type == kWifiCredentialNotificationType) {
+    *model_type = WIFI_CREDENTIALS;
+    return true;
   }
   *model_type = UNSPECIFIED;
   return false;