Move mojo/services/public/cpp TypeConverters to mojo/converters.

mojo/services/native_viewport/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.
 
 import("//build/config/ui.gni")
 
 if (!is_android) {
   shared_library("native_viewport") {
     output_name = "mojo_native_viewport_service"
 
@@ skipping 11 matching lines @@
   }
 }
 
 source_set("lib") {
   deps = [
     "//base",
     "//cc/surfaces",
     "//gpu/command_buffer/service",
     "//mojo/application",
     "//mojo/common",
+    "//mojo/converters",
     "//mojo/environment:chromium",
     "//mojo/services/gles2",
-    "//mojo/services/public/cpp/geometry",
-    "//mojo/services/public/cpp/input_events",
-    "//mojo/services/public/cpp/surfaces",
     "//mojo/services/public/interfaces/geometry",
     "//mojo/services/public/interfaces/gpu",
     "//mojo/services/public/interfaces/native_viewport",
     "//mojo/services/public/interfaces/surfaces",
     "//ui/events",
     "//ui/events/platform",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gl",
     "//ui/platform_window",
@@ skipping 28 matching lines @@
     deps += [
       "//ui/events/platform/x11",
       "//ui/platform_window/x11",
     ]
   }
 
   if (use_ozone) {
     sources += [ "platform_viewport_ozone.cc" ]
   }
 }