Reland of "Mojo interface/service for Leak Detector on remote process"

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.
 
 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,
@@ skipping 110 matching lines @@
       ":metrics",
     ]
     deps = [
       "//base",
       "//content/public/browser",
       "//gpu/config",
     ]
   }
 }
 
-if (is_chromeos) {
-  # GYP version: components/metrics.gypi:metrics_leak_detector
-  static_library("leak_detector") {
-    sources = [
-      "leak_detector/call_stack_manager.cc",
-      "leak_detector/call_stack_manager.h",
-      "leak_detector/call_stack_table.cc",
-      "leak_detector/call_stack_table.h",
-      "leak_detector/custom_allocator.cc",
-      "leak_detector/custom_allocator.h",
-      "leak_detector/leak_analyzer.cc",
-      "leak_detector/leak_analyzer.h",
-      "leak_detector/leak_detector.cc",
-      "leak_detector/leak_detector.h",
-      "leak_detector/leak_detector_impl.cc",
-      "leak_detector/leak_detector_impl.h",
-      "leak_detector/leak_detector_value_type.cc",
-      "leak_detector/leak_detector_value_type.h",
-      "leak_detector/ranked_set.cc",
-      "leak_detector/ranked_set.h",
-    ]
-
-    deps = [
-      "//base",
-      "//components/metrics/proto:proto",
-    ]
-  }
-}
-
 # GYP version: components/metrics.gypi:metrics_net
 static_library("net") {
   sources = [
     "net/cellular_logic_helper.cc",
     "net/cellular_logic_helper.h",
     "net/net_metrics_log_uploader.cc",
     "net/net_metrics_log_uploader.h",
     "net/network_metrics_provider.cc",
     "net/network_metrics_provider.h",
     "net/version_utils.cc",
@@ skipping 127 matching lines @@
       "serialization/metric_sample.h",
       "serialization/serialization_utils.cc",
       "serialization/serialization_utils.h",
     ]
     deps = [
       "//base",
     ]
   }
 }
 
-if (is_chromeos) {
-  source_set("leak_detector_unit_tests") {
-    testonly = true
-    sources = [
-      "leak_detector/call_stack_manager_unittest.cc",
-      "leak_detector/call_stack_table_unittest.cc",
-      "leak_detector/leak_analyzer_unittest.cc",
-      "leak_detector/leak_detector_impl_unittest.cc",
-      "leak_detector/leak_detector_unittest.cc",
-      "leak_detector/ranked_set_unittest.cc",
-    ]
-
-    deps = [
-      ":leak_detector",
-      "//base",
-      "//components/metrics/proto:proto",
-      "//content/test:test_support",
-      "//testing/gtest",
-    ]
-  }
-}
-
 source_set("unit_tests") {
   testonly = true
   sources = [
     "call_stack_profile_metrics_provider_unittest.cc",
     "cloned_install_detector_unittest.cc",
     "daily_event_unittest.cc",
     "data_use_tracker_unittest.cc",
     "drive_metrics_provider_unittest.cc",
     "file_metrics_provider_unittest.cc",
     "histogram_encoder_unittest.cc",
@@ skipping 25 matching lines @@
     "//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" ]
+    deps += [ "leak_detector:unit_tests" ]
   }
 }