Introduce mojo interface for collecting StackSamplingProfiler data

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("//mojo/public/tools/bindings/mojom.gni")
+
 declare_args() {
   # Overrides os name in uma metrics log to "Blimp".
   metrics_use_blimp = false
 }
 
 # These are only used by the blimp team, which has entirely migrated to gn,
 # so this logic is not replicated in the gyp file.
 if (metrics_use_blimp) {
   defines = [ "OVERRIDE_OS_NAME_TO_BLIMP" ]
 }
@@ skipping 63 matching lines @@
     "url_constants.cc",
     "url_constants.h",
   ]
 
   public_deps = [
     "//components/metrics/proto",
   ]
   deps = [
     "//base",
     "//base:base_static",
+    "//components/metrics/public/interfaces:mojo_bindings",
     "//components/prefs",
     "//components/variations",
     "//third_party/zlib:compression_utils",
   ]
 
   if (is_chromeos) {
     deps += [ ":serialization" ]
   }
 
   if (is_mac) {
@@ skipping 201 matching lines @@
     "ui/screen_info_metrics_provider_unittest.cc",
   ]
 
   deps = [
     ":metrics",
     ":net",
     ":profiler",
     ":test_support",
     ":ui",
     "//base/test:test_support",
+    "//components/metrics/public/cpp:unit_tests",
     "//components/prefs:test_support",
     "//components/variations",
     "//net:test_support",
     "//testing/gtest",
     "//third_party/zlib:compression_utils",
     "//ui/gfx/geometry",
   ]
 
   if (is_linux) {
     sources += [ "serialization/serialization_utils_unittest.cc" ]
     deps += [ ":serialization" ]
   }
 
   if (is_chromeos) {
     deps += [ "leak_detector:unit_tests" ]
   }
 }