WebView Metrics client implementation (Chromium part)

android_webview/BUILD.gn

Index: android_webview/BUILD.gn
diff --git a/android_webview/BUILD.gn b/android_webview/BUILD.gn
index 9a225392e459c74202d659f4ef6e687a5e8c9eef..95fe94289a371341142b0655a1cb9b2f85fd7c1a 100644
--- a/android_webview/BUILD.gn
+++ b/android_webview/BUILD.gn
@@ -394,6 +394,8 @@ source_set("common") {
     "browser/aw_message_port_message_filter.cc",
     "browser/aw_message_port_message_filter.h",
     "browser/aw_message_port_service.h",
+    "browser/aw_metrics_service_client.cc",
+    "browser/aw_metrics_service_client.h",
     "browser/aw_permission_manager.cc",
     "browser/aw_permission_manager.h",
     "browser/aw_pref_store.cc",
@@ -523,6 +525,11 @@ source_set("common") {
     "//components/crash/content/browser",
     "//components/data_reduction_proxy/core/browser",
     "//components/devtools_discovery",
+    "//components/metrics",
+    "//components/metrics:gpu",
+    "//components/metrics:net",
+    "//components/metrics:profiler",
+    "//components/metrics:ui",
     "//components/navigation_interception",
     "//components/printing/browser",
     "//components/printing/common",