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 c41a4ee3872207d1da3d15a8ea9182806630ebd3..f338f68a37bb752ac0d8ad5433e7c04413059c35 100644
--- a/blimp/engine/BUILD.gn
+++ b/blimp/engine/BUILD.gn
@@ -57,6 +57,8 @@ source_set("app") {
     "app/blimp_content_renderer_client.h",
     "app/blimp_engine_config.cc",
     "app/blimp_engine_config.h",
+    "app/blimp_metrics_service_client.cc",
+    "app/blimp_metrics_service_client.h",
     "app/blimp_network_delegate.cc",
     "app/blimp_network_delegate.h",
     "app/blimp_permission_manager.cc",
@@ -80,6 +82,12 @@ source_set("app") {
     ":session",
     "//base",
     "//blimp/common/proto",
+    "//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",
@@ -126,6 +134,9 @@ source_set("common") {
 
   deps = [
     "//base",
+    "//components/metrics",
+    "//components/pref_registry",
+    "//components/prefs",
     "//components/version_info",
     "//content/public/common",
     "//ui/base",