Set SSH timeouts from configuration file

It looks like during the refactoring in I253a6d94, `sshCommandTimeout`
and `sshConnectionTimeout` fields were not initialized with values from
the `replication.config`.

This is restoring code present before change mentioned above.

Change-Id: Id1f8e9f17a2a8bf7c1dfbd48b6cd005513e7b187

src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationConfigImpl.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationConfigImpl.java b/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationConfigImpl.java
index 76ee14b..4f2def8 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationConfigImpl.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationConfigImpl.java
@@ -13,9 +13,13 @@
 // limitations under the License.
 package com.googlesource.gerrit.plugins.replication;
 
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+import static java.util.concurrent.TimeUnit.SECONDS;
+
 import com.google.common.base.Strings;
 import com.google.gerrit.common.Nullable;
 import com.google.gerrit.extensions.annotations.PluginData;
+import com.google.gerrit.server.config.ConfigUtil;
 import com.google.gerrit.server.config.SitePaths;
 import com.google.inject.Inject;
 import java.nio.file.Path;
@@ -30,7 +34,7 @@
   private int maxRefsToLog;
   private final int maxRefsToShow;
   private int sshCommandTimeout;
-  private int sshConnectionTimeout = DEFAULT_SSH_CONNECTION_TIMEOUT_MS;
+  private int sshConnectionTimeout;
   private final MergedConfigResource configResource;
   private final Path pluginDataDir;
 
@@ -44,6 +48,17 @@
     this.defaultForceUpdate = config.getBoolean("gerrit", "defaultForceUpdate", false);
     this.maxRefsToLog = config.getInt("gerrit", "maxRefsToLog", 0);
     this.maxRefsToShow = config.getInt("gerrit", "maxRefsToShow", 2);
+    this.sshCommandTimeout =
+        (int) ConfigUtil.getTimeUnit(config, "gerrit", null, "sshCommandTimeout", 0, SECONDS);
+    this.sshConnectionTimeout =
+        (int)
+            ConfigUtil.getTimeUnit(
+                config,
+                "gerrit",
+                null,
+                "sshConnectionTimeout",
+                DEFAULT_SSH_CONNECTION_TIMEOUT_MS,
+                MILLISECONDS);
     this.pluginDataDir = pluginDataDir;
   }