metrics: Send ability to notify chrome of system crashes

metrics_library.h

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef METRICS_LIBRARY_H_
 #define METRICS_LIBRARY_H_
 
 #include <sys/types.h>
 #include <string>
 
@@ skipping 64 matching lines @@
   // non-blocking RPC to UserMetrics::RecordAction.  The new metric must be
   // added to chrome/tools/extract_actions.py in the Chromium repository, which
   // should then be run to generate a hash for the new action.
   //
   // Until http://crosbug.com/11125 is fixed, the metric must also be added to
   // chrome/browser/chromeos/external_metrics.cc.
   //
   // |action| is the user-generated event (e.g., "MuteKeyPressed").
   bool SendUserActionToUMA(const std::string& action);
 
+  // Sends a signal to UMA that a crash of the given |crash_kind|
+  // has occurred.  Used by UMA to generate stability statistics.
+  bool SendCrashToUMA(const char *crash_kind);
+
   // Sends to Autotest and returns true on success.
   static bool SendToAutotest(const std::string& name, int value);
 
  private:
   friend class CMetricsLibraryTest;
   friend class MetricsLibraryTest;
   FRIEND_TEST(MetricsLibraryTest, AreMetricsEnabled);
   FRIEND_TEST(MetricsLibraryTest, FormatChromeMessage);
   FRIEND_TEST(MetricsLibraryTest, FormatChromeMessageTooLong);
   FRIEND_TEST(MetricsLibraryTest, IsDeviceMounted);
@@ skipping 27 matching lines @@
   static time_t cached_enabled_time_;
 
   // Cached state of whether or not metrics were enabled.
   static bool cached_enabled_;
 
   const char* uma_events_file_;
   const char* consent_file_;
 };
 
 #endif  // METRICS_LIBRARY_H_