Let MetricsService know about some Android Activities

chrome/common/pref_names.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/common/pref_names.h"
 
 #include "base/basictypes.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
 namespace prefs {
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 // On Chrome OS, total number of kernel crashes since the last report.
 const char kStabilityKernelCrashCount[] =
     "user_experience_metrics.stability.kernel_crash_count";
 
 // On Chrome OS, total number of unclean system shutdowns since the
 // last report.
 const char kStabilitySystemUncleanShutdownCount[] =
     "user_experience_metrics.stability.system_unclean_shutdowns";
 
+#if defined(OS_ANDROID)
+// Activity type that is currently in the foreground for the UMA session.
+// Uses the ActivityTypeIds::Type enum.
+const char kStabilityForegroundActivityType[] =
+    "user_experience_metrics.stability.current_foreground_activity_type";
+
+// Tracks which Activities were launched during the last session.
+// See |metrics_service_android.cc| for its usage.
+const char kStabilityLaunchedActivityFlags[] =
+    "user_experience_metrics.stability.launched_activity_flags";
+
+// List pref: Counts how many times each Activity was launched.
+// Indexed into by ActivityTypeIds::Type.
+const char kStabilityLaunchedActivityCounts[] =
+    "user_experience_metrics.stability.launched_activity_counts";
+
+// List pref: Counts how many times each Activity type was in the foreground
+// when a UMA session failed to be shut down properly.
+// Indexed into by ActivityTypeIds::Type.
+const char kStabilityCrashedActivityCounts[] =
+    "user_experience_metrics.stability.crashed_activity_counts";
+#endif
+
 // Number of times the browser has been able to register crash reporting.
 const char kStabilityBreakpadRegistrationSuccess[] =
     "user_experience_metrics.stability.breakpad_registration_ok";
 
 // Number of times the browser has failed to register crash reporting.
 const char kStabilityBreakpadRegistrationFail[] =
     "user_experience_metrics.stability.breakpad_registration_fail";
 
 // Number of times the browser has been run under a debugger.
 const char kStabilityDebuggerPresent[] =
@@ skipping 1170 matching lines @@
 
 // The number of seconds since epoch that the OS password was last changed.
 const char kOsPasswordLastChanged[] =
     "password_manager.os_password_last_changed";
 #endif
 
 // Whether DNS Quick Check is disabled in proxy resolution.
 const char kQuickCheckEnabled[] = "proxy.quick_check_enabled";
 
 }  // namespace prefs