Decouple GamepadSharedMemory into Blink.

content/browser/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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
@@ skipping 52 matching lines @@
     "//content/browser/payments:payment_app_proto",
     "//content/browser/service_worker:service_worker_proto",
     "//content/browser/speech/proto",
     "//content/common",
     "//content/public/common:common_sources",
     "//crypto",
     "//device/battery",
     "//device/battery:mojo_bindings",
     "//device/bluetooth",
     "//device/gamepad",
+    "//device/gamepad/public/interfaces",
     "//device/generic_sensor",
     "//device/geolocation",
     "//device/geolocation/public/interfaces",
     "//device/nfc:mojo_bindings",
     "//device/power_monitor",
     "//device/power_save_blocker",
     "//device/screen_orientation/public/interfaces",
     "//device/sensors/public/cpp",
     "//device/time_zone_monitor",
     "//device/time_zone_monitor/public/interfaces",
@@ skipping 1897 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }