Performance monitor stats gathering.

chrome/browser/performance_monitor/constants.cc

Index: chrome/browser/performance_monitor/constants.cc
diff --git a/chrome/browser/performance_monitor/constants.cc b/chrome/browser/performance_monitor/constants.cc
index 3dcacb9a559967aad953d88f923d8416cb72e2d9..8fae1b5c2ed71f3595123ebe5fa112bbe2696b77 100644
--- a/chrome/browser/performance_monitor/constants.cc
+++ b/chrome/browser/performance_monitor/constants.cc
@@ -6,12 +6,19 @@
 
 namespace performance_monitor {
 
+const char kMetricCPUUsage[] = "cpu_usage";
+const char kMetricCPUUsageDescription[] =
+    "Median CPU usage of all running Chrome processes.";
+const char kMetricPrivateMemoryUsage[] = "private_memory_usage";
+const char kMetricPrivateMemoryUsageDescription[] =
+    "Median private memory usage of all running Chrome processes.";
+const char kMetricSharedMemoryUsage[] = "shared_memory_usage";
+const char kMetricSharedMemoryUsageDescription[] =
+    "Median shared memory usage of all running Chrome processes.";
 // The key to insert/retrieve information about the chrome version from the
 // database.
 const char kStateChromeVersion[] = "chrome_version";
 const char kMetricNotFoundError[] = "Mertic details not found.";
 const char kProcessChromeAggregate[] = "chrome_aggregate";
-const char kSampleMetricDescription[] = "A sample metric.";
-const char kSampleMetricName[] = "SAMPLE";
 
 }  // namespace performance_monitor