Create and integrate a metrics service client into Blimp engine.

blimp/engine/BUILD.gn

Index: blimp/engine/BUILD.gn
diff --git a/blimp/engine/BUILD.gn b/blimp/engine/BUILD.gn
index 3c9d0d794ddaeaf23b4708c7af79fb42fbfde93b..52c622d927f6a4c396250cf0aee64574fe30018d 100644
--- a/blimp/engine/BUILD.gn
+++ b/blimp/engine/BUILD.gn
@@ -55,6 +55,10 @@ source_set("app") {
     "app/blimp_content_main_delegate.h",
   ]
 
+  public_deps = [
+    ":app_metrics",
+  ]
+
   deps = [
     ":app_config",
     ":app_net",
@@ -71,6 +75,14 @@ source_set("app") {
     "//blimp/common/proto",
     "//blimp/engine:blob_channel_mojo_cpp_sources",
     "//blimp/net",
+    "//components/metrics",
+    "//components/metrics:gpu",
+    "//components/metrics:net",
+    "//components/metrics:profiler",
+    "//components/metrics:ui",
+    "//components/prefs",
+    "//components/web_cache/renderer",
+    "//content",
     "//content/public/app:both",
     "//content/public/browser",
     "//content/public/common",
@@ -91,6 +103,26 @@ source_set("app_config") {
   ]
 }
 
+source_set("app_metrics") {
+  sources = [
+    "app/blimp_metrics_service_client.cc",
+    "app/blimp_metrics_service_client.h",
+  ]
+
+  public_deps =[
+    "//components/metrics",
+  ]
+
+  deps = [
+    "//base",
+    "//components/metrics:gpu",
+    "//components/metrics:net",
+    "//components/metrics:profiler",
+    "//components/metrics:ui",
+    "//components/prefs",
+  ]
+}
+
 source_set("app_net") {
   sources = [
     "app/blimp_network_delegate.cc",
@@ -175,11 +207,15 @@ source_set("common") {
   ]
 
   deps = [
+    ":app_metrics",
     ":app_net",
     ":app_permissions",
     ":common_user_agent",
     "//base",
-    "//content/public/browser",
+    "//components/metrics",
+    "//components/pref_registry",
+    "//components/prefs",
+    "//components/version_info",
     "//content/public/common",
     "//net",
     "//ui/base",
@@ -294,6 +330,7 @@ source_set("app_unit_tests") {
 
   sources = [
     "app/blimp_engine_config_unittest.cc",
+    "app/blimp_metrics_service_client_unittest.cc",
     "app/settings_manager_unittest.cc",
     "app/ui/blimp_screen_unittest.cc",
   ]
@@ -301,12 +338,14 @@ source_set("app_unit_tests") {
   deps = [
     ":app",
     ":app_config",
+    ":app_metrics",
     ":app_settings",
     ":app_switches",
     "//base",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
     "//blimp/engine:app_ui",
+    "//net:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/display",