metrics: Add leak detector controller in Chrome OS metrics system

chrome/browser/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 585 matching lines @@
     deps += [ "//chrome/browser/chromeos" ]
   }
 
   if (is_chromeos || is_ios) {
     sources -= [
       "signin/chrome_signin_status_metrics_provider_delegate.cc",
       "signin/chrome_signin_status_metrics_provider_delegate.h",
     ]
   }
 
+  if (is_chromeos) {
+    sources += [
+      "metrics/leak_detector_controller.cc",
+      "metrics/leak_detector_controller.h",
+    ]
+    deps += [ "//components/metrics:leak_detector" ]
+  }
+
   if (use_cups) {
     configs += [ "//printing:cups" ]
   }
   if (is_desktop_linux) {
     sources += rebase_path(gypi_values.chrome_browser_gnome_keyring_sources,
                            ".",
                            "//chrome")
     configs += [ ":gnome_keyring" ]
   }
   if (is_desktop_linux) {
@@ skipping 726 matching lines @@
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }