Add Startup Timing to CPM

chrome/browser/performance_monitor/constants.h

Index: chrome/browser/performance_monitor/constants.h
diff --git a/chrome/browser/performance_monitor/constants.h b/chrome/browser/performance_monitor/constants.h
index 9065538d040f7426ebcaadde96e9357843b278dd..dbf153d22ab5d84782ea64a82025c626e4c1ccf2 100644
--- a/chrome/browser/performance_monitor/constants.h
+++ b/chrome/browser/performance_monitor/constants.h
@@ -24,15 +24,32 @@ extern const char kMetricCPUUsageName[];
 extern const char kMetricCPUUsageDescription[];
 extern const char kMetricCPUUsageUnits[];
 extern const double kMetricCPUUsageTickSize;
+
 extern const char kMetricPrivateMemoryUsageName[];
 extern const char kMetricPrivateMemoryUsageDescription[];
 extern const char kMetricPrivateMemoryUsageUnits[];
 extern const double kMetricPrivateMemoryUsageTickSize;
+
 extern const char kMetricSharedMemoryUsageName[];
 extern const char kMetricSharedMemoryUsageDescription[];
 extern const char kMetricSharedMemoryUsageUnits[];
 extern const double kMetricSharedMemoryUsageTickSize;
 
+extern const char kMetricStartupTimeName[];
+extern const char kMetricStartupTimeDescription[];
+extern const char kMetricStartupTimeUnits[];
+extern const double kMetricStartupTimeTickSize;
+
+extern const char kMetricTestStartupTimeName[];
+extern const char kMetricTestStartupTimeDescription[];
+extern const char kMetricTestStartupTimeUnits[];
+extern const double kMetricTestStartupTimeTickSize;
+
+extern const char kMetricSessionRestoreTimeName[];
+extern const char kMetricSessionRestoreTimeDescription[];
+extern const char kMetricSessionRestoreTimeUnits[];
+extern const double kMetricSessionRestoreTimeTickSize;
+
 }  // namespace performance_monitor
 
 #endif  // CHROME_BROWSER_PERFORMANCE_MONITOR_CONSTANTS_H_