Chromecast: adds handler to log metrics from external processes.

chromecast/common/pref_names.cc

Index: chromecast/common/pref_names.cc
diff --git a/chromecast/common/pref_names.cc b/chromecast/common/pref_names.cc
index 34d5731605c0ac232f7720f5f4cc0772c2ce1305..45d0bc1780d59f52e8f4559ed9dfa14ec5ce4f6a 100644
--- a/chromecast/common/pref_names.cc
+++ b/chromecast/common/pref_names.cc
@@ -16,6 +16,14 @@ const char kRemoteDebuggingPort[] = "remote_debugging_port";
 const char kStabilityChildProcessCrashCount[] =
     "user_experience_metrics.stability.child_process_crash_count";
 
+// Total number of kernel crashes since the last report.
+const char kStabilityKernelCrashCount[] =
+    "user_experience_metrics.stability.kernel_crash_count";
+
+// Total number of external user process crashes since the last report.
+const char kStabilityOtherUserCrashCount[] =
+    "user_experience_metrics.stability.other_user_crash_count";
+
 // Number of times a renderer process crashed since the last report.
 const char kStabilityRendererCrashCount[] =
     "user_experience_metrics.stability.renderer_crash_count";
@@ -25,4 +33,8 @@ const char kStabilityRendererCrashCount[] =
 const char kStabilityRendererHangCount[] =
     "user_experience_metrics.stability.renderer_hang_count";
 
+// Total number of unclean system shutdowns since the last report.
+const char kStabilitySystemUncleanShutdownCount[] =
+    "user_experience_metrics.stability.system_unclean_shutdowns";
+
 }  // namespace prefs