Make stack sampling profiler sample beyond startup.

components/metrics/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("//testing/test.gni")
 
 static_library("metrics") {
   sources = [
     "call_stack_profile_metrics_provider.cc",
     "call_stack_profile_metrics_provider.h",
@@ skipping 253 matching lines @@
     "//services/service_manager/public/interfaces",
   ]
 
   public_deps = [
     "//components/metrics/public/interfaces:single_sample_metrics_mojo_bindings",
   ]
 }
 
 source_set("call_stack_profile_params") {
   sources = [
-    "call_stack_profile_params.cc",
     "call_stack_profile_params.h",
   ]
+
+  deps = [
+    "//base:base",
+  ]
 }
 
 source_set("call_stacks") {
   sources = [
     "call_stack_profile_collector.cc",
     "call_stack_profile_collector.h",
   ]
   deps = [
     ":metrics",
     "//components/metrics/public/interfaces:call_stack_mojo_bindings",
@@ skipping 120 matching lines @@
 # Convenience testing target
 test("metrics_unittests") {
   sources = [
     "//components/test/run_all_unittests.cc",
   ]
   deps = [
     ":unit_tests",
     "//components/test:test_support",
   ]
 }