bootstat: Remove custom uptime parser in favor of elapsedRealtime.

Refactored init/utils/boot_clock into base/chrono_utils.

Bug: 34352037
Test: none
Change-Id: Ied0c00867336b85922369d7ff37520e3d28fc61e
diff --git a/init/service.h b/init/service.h
index 013e65f..3dc0e53 100644
--- a/init/service.h
+++ b/init/service.h
@@ -25,6 +25,8 @@
 #include <string>
 #include <vector>
 
+#include <android-base/chrono_utils.h>
+
 #include "action.h"
 #include "capabilities.h"
 #include "descriptors.h"
@@ -135,8 +137,8 @@
 
     unsigned flags_;
     pid_t pid_;
-    boot_clock::time_point time_started_; // time of last start
-    boot_clock::time_point time_crashed_; // first crash within inspection window
+    android::base::boot_clock::time_point time_started_; // time of last start
+    android::base::boot_clock::time_point time_crashed_; // first crash within inspection window
     int crash_count_;                     // number of times crashed within window
 
     uid_t uid_;