Move usbDevices permission out to //extensions.

extensions/common/permissions/extensions_api_permissions.cc

Index: extensions/common/permissions/extensions_api_permissions.cc
diff --git a/extensions/common/permissions/extensions_api_permissions.cc b/extensions/common/permissions/extensions_api_permissions.cc
index c1e00f527c586b6e2c1b5f50a141cef8c1944259..9c71309163ffb9838fc3764dc9e90756af28bb73 100644
--- a/extensions/common/permissions/extensions_api_permissions.cc
+++ b/extensions/common/permissions/extensions_api_permissions.cc
@@ -7,6 +7,7 @@
 #include "extensions/common/permissions/api_permission.h"
 #include "extensions/common/permissions/permission_message.h"
 #include "extensions/common/permissions/socket_permission.h"
+#include "extensions/common/permissions/usb_device_permission.h"
 #include "grit/extensions_strings.h"
 
 namespace extensions {
@@ -34,6 +35,8 @@ std::vector<APIPermissionInfo*> ExtensionsAPIPermissions::GetAllPermissions()
       {APIPermission::kStorage, "storage"},
       {APIPermission::kUsb, "usb", APIPermissionInfo::kFlagNone,
        IDS_EXTENSION_PROMPT_WARNING_USB, PermissionMessage::kUsb},
+      {APIPermission::kUsbDevice, "usbDevices", APIPermissionInfo::kFlagNone, 0,
+       PermissionMessage::kNone, &CreateAPIPermission<UsbDevicePermission>},
   };
 
   std::vector<APIPermissionInfo*> permissions;