Let MetricsService know about some Android Activities

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 1144e7241b0ec572b94a8bdd8a24bc86d4d02287..09483a13882a9f680645eff1e5d5f7bff2c63c1d 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -1473,6 +1473,33 @@ const char kStabilityKernelCrashCount[] =
 const char kStabilitySystemUncleanShutdownCount[] =
     "user_experience_metrics.stability.system_unclean_shutdowns";
 
+#if defined(OS_ANDROID)
+// ID of the Activity that is currently in the foreground.
+const char kStabilityForegroundActivity[] =
+    "user_experience_metrics.stability.foreground_activity";
+
+// ORed set of flags indicating which Activities were launched during the
+// last session.
+const char kStabilityLaunchedActivityFlags[] =
+    "user_experience_metrics.stability.launched_activity_flags";
+
+// Counts how many times the main browser Activity was launched.
+const char kStabilityLaunchCountMainActivity[] =
+    "user_experience_metrics.stability.launch_count_main_activity";
+
+// Counts how many times a FullScreenActivity was launched.
+const char kStabilityLaunchCountFullScreenActivity[] =
+    "user_experience_metrics.stability.launch_count_full_screen_activity";
+
+// Counts how many times the main browser Activity crashed.
+const char kStabilityCrashCountMainActivity[] =
+    "user_experience_metrics.stability.crash_count_main_activity";
+
+// Counts how many times a FullScreenActivity crashed.
+const char kStabilityCrashCountFullScreenActivity[] =
+    "user_experience_metrics.stability.crash_count_full_screen_activity";
+#endif
+
 // Number of times the browser has been able to register crash reporting.
 const char kStabilityBreakpadRegistrationSuccess[] =
     "user_experience_metrics.stability.breakpad_registration_ok";