[Device Service] Move Gamepad Blink headers to be part of the Gamepad client library

components/exo/BUILD.gn

 # Copyright 2015 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")
 import("//testing/test.gni")
 
 source_set("exo") {
   sources = [
     "buffer.cc",
@@ skipping 38 matching lines @@
   ]
 
   deps = [
     "//ash",
     "//ash/public/cpp:ash_public_cpp",
     "//base",
     "//cc",
     "//cc/ipc:interfaces",
     "//cc/surfaces",
     "//device/gamepad",
+    "//device/gamepad/public/cpp:shared_with_blink",
     "//gpu",
     "//gpu/command_buffer/client:gles2_interface",
     "//skia",
     "//ui/aura",
     "//ui/compositor",
     "//ui/display/manager",
     "//ui/events/devices:devices",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gl",
@@ skipping 109 matching lines @@
   data_deps = [
     "//ash/strings:ash_test_strings",
     "//ash/resources:ash_test_resources_100_percent",
     "//ash/resources:ash_test_resources_200_percent",
   ]
 
   if (is_linux) {
     deps += [ "//components/exo/wayland:unit_tests" ]
   }
 }