Move services code brought in from Mojo to live under //third_party.

mojo/converters/input_events/BUILD.gn

Index: mojo/converters/input_events/BUILD.gn
diff --git a/mojo/converters/input_events/BUILD.gn b/mojo/converters/input_events/BUILD.gn
index 751d039cfac3889265e0a83059f8ff76a1f5d27e..2c05f8d6fa6023347d76b6f0db9fe1cba3f3e8cb 100644
--- a/mojo/converters/input_events/BUILD.gn
+++ b/mojo/converters/input_events/BUILD.gn
@@ -19,8 +19,8 @@ component("input_events") {
     "//ui/gfx/geometry",
     "//mojo/converters/geometry",
     "//mojo/environment:chromium",
-    "//mojo/services/input_events/public/interfaces",
-    "//mojo/services/geometry/public/interfaces",
     "//third_party/mojo/src/mojo/public/c/system:for_component",
+    "//third_party/mojo_services/src/input_events/public/interfaces",
+    "//third_party/mojo_services/src/geometry/public/interfaces",
   ]
 }