Pull sdcard mounted atom.

Change-Id: I334fef334b67e94ee040026880ffbec2803b9982
Bug: 123688171
Test: Manually tested using statsd_testdrive script
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index 57c32c7..2632294d 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -303,6 +303,7 @@
         DangerousPermissionState dangerous_permission_state = 10050;
         TrainInfo train_info = 10051;
         TimeZoneDataInfo time_zone_data_info = 10052;
+        SDCardInfo sdcard_info = 10053;
     }
 
     // DO NOT USE field numbers above 100,000 in AOSP.
@@ -3231,6 +3232,28 @@
     optional int32 cycle_count = 1;
 }
 
+/**
+ * Logs that an SD card is mounted and information about it, its type (public or private) and the
+ * size in bytes.
+ * Pulled from:
+ *   StatsCompanionService
+ */
+
+message SDCardInfo {
+
+    enum Type {
+        UNKNOWN = 0;
+        TYPE_PUBLIC = 1;
+        TYPE_PRIVATE = 2;
+        OTHERS = 3;
+    }
+
+    // Type of the SD card: TYPE_PUBLIC if portable and TYPE_PRIVATE if internal.
+    optional Type type = 1;
+    // Total size of the sd card in bytes.
+    optional int64 size_bytes = 2;
+}
+
 /*
  * Logs when a connection becomes available and lost.
  * Logged in StatsCompanionService.java
diff --git a/cmds/statsd/src/external/StatsPullerManager.cpp b/cmds/statsd/src/external/StatsPullerManager.cpp
index d70c851..1513834 100644
--- a/cmds/statsd/src/external/StatsPullerManager.cpp
+++ b/cmds/statsd/src/external/StatsPullerManager.cpp
@@ -237,6 +237,9 @@
         // TimeZoneDataInfo.
         {android::util::TIME_ZONE_DATA_INFO,
          {.puller = new StatsCompanionServicePuller(android::util::TIME_ZONE_DATA_INFO)}},
+        // SDCardInfo
+        {android::util::SDCARD_INFO,
+         {.puller = new StatsCompanionServicePuller(android::util::SDCARD_INFO)}},
 };
 
 StatsPullerManager::StatsPullerManager() : mNextPullTimeNs(NO_ALARM_UPDATE) {