Move Timer from init to libbase

Test: boot bullhead
Test: new libbase unit tests

Change-Id: Ic398a1daa1fe92c10ea7bc1e6ac3f781cee9a5b5
diff --git a/init/ueventd.cpp b/init/ueventd.cpp
index a713beb..c0eae1e 100644
--- a/init/ueventd.cpp
+++ b/init/ueventd.cpp
@@ -27,6 +27,7 @@
 #include <set>
 #include <thread>
 
+#include <android-base/chrono_utils.h>
 #include <android-base/logging.h>
 #include <android-base/properties.h>
 #include <selinux/android.h>
@@ -198,7 +199,7 @@
 }
 
 void ColdBoot::Run() {
-    Timer cold_boot_timer;
+    android::base::Timer cold_boot_timer;
 
     RegenerateUevents();
 
@@ -209,7 +210,7 @@
     WaitForSubProcesses();
 
     close(open(COLDBOOT_DONE, O_WRONLY | O_CREAT | O_CLOEXEC, 0000));
-    LOG(INFO) << "Coldboot took " << cold_boot_timer;
+    LOG(INFO) << "Coldboot took " << cold_boot_timer.duration().count() / 1000.0f << " seconds";
 }
 
 DeviceHandler CreateDeviceHandler() {