TabManager: Set OOM scores via a new debugd interface on ChromeOS.

chromeos/dbus/fake_debug_daemon_client.cc

Index: chromeos/dbus/fake_debug_daemon_client.cc
diff --git a/chromeos/dbus/fake_debug_daemon_client.cc b/chromeos/dbus/fake_debug_daemon_client.cc
index 57680af6dc974a6b4bf2fd662f5f54248b5731fe..8ec6a8d24ef2e9164de903af406c6da03dae5370 100644
--- a/chromeos/dbus/fake_debug_daemon_client.cc
+++ b/chromeos/dbus/fake_debug_daemon_client.cc
@@ -195,6 +195,13 @@ void FakeDebugDaemonClient::WaitForServiceToBeAvailable(
   }
 }
 
+void FakeDebugDaemonClient::SetOomScoreAdj(
+    const std::map<pid_t, int32_t>& pid_to_oom_score_adj,
+    const SetOomScoreAdjCallback& callback) {
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(callback, false, ""));
+}
+
 void FakeDebugDaemonClient::SetDebuggingFeaturesStatus(int featues_mask) {
   featues_mask_ = featues_mask;
 }