diff --git a/metrics/constants.h b/metrics/constants.h
new file mode 100644
index 0000000..d44a74f
--- /dev/null
+++ b/metrics/constants.h
@@ -0,0 +1,28 @@
+//
+// Copyright (C) 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef METRICS_CONSTANTS_H_
+#define METRICS_CONSTANTS_H_
+
+namespace metrics {
+static const char kMetricsDirectory[] = "/data/misc/metrics/";
+static const char kMetricsEventsFilePath[] = "/data/misc/metrics/uma-events";
+static const char kMetricsGUIDFilePath[] = "/data/misc/metrics/Sysinfo.GUID";
+static const char kMetricsServer[] = "http://clients4.google.com/uma/v2";
+static const char kConsentFilePath[] = "/data/misc/metrics/enabled";
+}  // namespace metrics
+
+#endif  // METRICS_CONSTANTS_H_
diff --git a/metrics/metrics_daemon_main.cc b/metrics/metrics_daemon_main.cc
index 392f12a..01a6f7b 100644
--- a/metrics/metrics_daemon_main.cc
+++ b/metrics/metrics_daemon_main.cc
@@ -9,6 +9,7 @@
 #include <chromeos/flag_helper.h>
 #include <chromeos/syslog_logging.h>
 
+#include "constants.h"
 #include "metrics_daemon.h"
 
 const char kScalingMaxFreqPath[] =
@@ -34,10 +35,10 @@
                "Interval at which metrics_daemon sends the metrics. (needs "
                "-uploader)");
   DEFINE_string(server,
-                "https://clients4.google.com/uma/v2",
+                metrics::kMetricsServer,
                 "Server to upload the metrics to. (needs -uploader)");
   DEFINE_string(metrics_file,
-                "/var/lib/metrics/uma-events",
+                metrics::kMetricsEventsFilePath,
                 "File to use as a proxy for uploading the metrics");
   DEFINE_string(config_root,
                 "/", "Root of the configuration files (testing only)");
diff --git a/metrics/metrics_daemon_test.cc b/metrics/metrics_daemon_test.cc
index fa9fcfa..5aa7ab8 100644
--- a/metrics/metrics_daemon_test.cc
+++ b/metrics/metrics_daemon_test.cc
@@ -44,8 +44,6 @@
 static const char kFakeVmStatsName[] = "fake-vm-stats";
 static const char kFakeScalingMaxFreqPath[] = "fake-scaling-max-freq";
 static const char kFakeCpuinfoMaxFreqPath[] = "fake-cpuinfo-max-freq";
-static const char kMetricsServer[] = "https://clients4.google.com/uma/v2";
-static const char kMetricsFilePath[] = "/var/lib/metrics/uma-events";
 
 class MetricsDaemonTest : public testing::Test {
  protected:
diff --git a/metrics/metrics_library.cc b/metrics/metrics_library.cc
index fb80354..db7e7d3 100644
--- a/metrics/metrics_library.cc
+++ b/metrics/metrics_library.cc
@@ -13,12 +13,10 @@
 #include <cstdio>
 #include <cstring>
 
+#include "constants.h"
 #include "serialization/metric_sample.h"
 #include "serialization/serialization_utils.h"
 
-static const char kAutotestPath[] = "/var/log/metrics/autotest-events";
-static const char kUMAEventsPath[] = "/var/lib/metrics/uma-events";
-static const char kConsentFile[] = "/home/chronos/Consent To Send Stats";
 static const char kCrosEventHistogramName[] = "Platform.CrOSEvent";
 static const int kCrosEventHistogramMax = 100;
 
@@ -46,7 +44,7 @@
 time_t MetricsLibrary::cached_enabled_time_ = 0;
 bool MetricsLibrary::cached_enabled_ = false;
 
-MetricsLibrary::MetricsLibrary() : consent_file_(kConsentFile) {}
+MetricsLibrary::MetricsLibrary() : consent_file_(metrics::kConsentFilePath) {}
 MetricsLibrary::~MetricsLibrary() {}
 
 // We take buffer and buffer_size as parameters in order to simplify testing
@@ -127,7 +125,7 @@
 }
 
 void MetricsLibrary::Init() {
-  uma_events_file_ = kUMAEventsPath;
+  uma_events_file_ = metrics::kMetricsEventsFilePath;
 }
 
 bool MetricsLibrary::SendToAutotest(const std::string& name, int value) {
@@ -150,30 +148,30 @@
   return metrics::SerializationUtils::WriteMetricToFile(
       *metrics::MetricSample::HistogramSample(name, sample, min, max, nbuckets)
            .get(),
-      kUMAEventsPath);
+      metrics::kMetricsEventsFilePath);
 }
 
 bool MetricsLibrary::SendEnumToUMA(const std::string& name, int sample,
                                    int max) {
   return metrics::SerializationUtils::WriteMetricToFile(
       *metrics::MetricSample::LinearHistogramSample(name, sample, max).get(),
-      kUMAEventsPath);
+      metrics::kMetricsEventsFilePath);
 }
 
 bool MetricsLibrary::SendSparseToUMA(const std::string& name, int sample) {
   return metrics::SerializationUtils::WriteMetricToFile(
       *metrics::MetricSample::SparseHistogramSample(name, sample).get(),
-      kUMAEventsPath);
+      metrics::kMetricsEventsFilePath);
 }
 
 bool MetricsLibrary::SendUserActionToUMA(const std::string& action) {
   return metrics::SerializationUtils::WriteMetricToFile(
-      *metrics::MetricSample::UserActionSample(action).get(), kUMAEventsPath);
+      *metrics::MetricSample::UserActionSample(action).get(), metrics::kMetricsEventsFilePath);
 }
 
 bool MetricsLibrary::SendCrashToUMA(const char *crash_kind) {
   return metrics::SerializationUtils::WriteMetricToFile(
-      *metrics::MetricSample::CrashSample(crash_kind).get(), kUMAEventsPath);
+      *metrics::MetricSample::CrashSample(crash_kind).get(), metrics::kMetricsEventsFilePath);
 }
 
 bool MetricsLibrary::SendCrosEventToUMA(const std::string& event) {
diff --git a/metrics/persistent_integer.cc b/metrics/persistent_integer.cc
index c6b2176..0dcd52a 100644
--- a/metrics/persistent_integer.cc
+++ b/metrics/persistent_integer.cc
@@ -9,14 +9,9 @@
 #include <base/logging.h>
 #include <base/posix/eintr_wrapper.h>
 
+#include "constants.h"
 #include "metrics/metrics_library.h"
 
-namespace {
-
-// The directory for the persistent storage.
-const char kBackingFilesDirectory[] = "/var/lib/metrics/";
-
-}
 
 namespace chromeos_metrics {
 
@@ -31,7 +26,7 @@
   if (testing_) {
     backing_file_name_ = name_;
   } else {
-    backing_file_name_ = kBackingFilesDirectory + name_;
+    backing_file_name_ = metrics::kMetricsDirectory + name_;
   }
 }
 
diff --git a/metrics/uploader/system_profile_cache.cc b/metrics/uploader/system_profile_cache.cc
index 30a1ff5..82401c6 100644
--- a/metrics/uploader/system_profile_cache.cc
+++ b/metrics/uploader/system_profile_cache.cc
@@ -4,24 +4,23 @@
 
 #include "uploader/system_profile_cache.h"
 
+#include <base/files/file_util.h>
+#include <base/guid.h>
+#include <base/logging.h>
+#include <base/strings/string_number_conversions.h>
+#include <base/strings/string_util.h>
+#include <base/sys_info.h>
 #include <string>
 #include <vector>
 
-#include "base/files/file_util.h"
-#include "base/guid.h"
-#include "base/logging.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_util.h"
-#include "base/sys_info.h"
+#include "constants.h"
 #include "persistent_integer.h"
 #include "uploader/metrics_log_base.h"
 #include "uploader/proto/chrome_user_metrics_extension.pb.h"
 
 namespace {
 
-const char kPersistentGUIDFile[] = "/var/lib/metrics/Sysinfo.GUID";
 const char kPersistentSessionIdFilename[] = "Sysinfo.SessionId";
-const char kProductIdFieldName[] = "GOOGLE_METRICS_PRODUCT_ID";
 
 }  // namespace
 
diff --git a/metrics/uploader/upload_service_test.cc b/metrics/uploader/upload_service_test.cc
index fb08464..efd0a56 100644
--- a/metrics/uploader/upload_service_test.cc
+++ b/metrics/uploader/upload_service_test.cc
@@ -20,9 +20,6 @@
 #include "uploader/system_profile_cache.h"
 #include "uploader/upload_service.h"
 
-static const char kMetricsServer[] = "https://clients4.google.com/uma/v2";
-static const char kMetricsFilePath[] = "/var/run/metrics/uma-events";
-
 class UploadServiceTest : public testing::Test {
  protected:
   UploadServiceTest()