Fix typo in team drives reference path.

The current link is a 404.

Bug: 715355
Change-Id: Id31bb3b61e468b948f4ccdc0dd553321d67f3808
Reviewed-on: https://chromium-review.googlesource.com/1013361Reviewed-by: Sasha Morrissey <sashab@chromium.org>
Reviewed-by: Ryo Hashimoto <hashimoto@chromium.org>
Commit-Queue: Stuart Langley <slangley@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551144}

google_apis/drive/drive_api_requests.h

@@ -479,7 +479,7 @@ class FilesCopyRequest : public DriveApiDataRequest<FileResource> {
 // should be able to be fetched by another request using this class, by
 // setting the next_page_token from previous call, to page_token.
 // This request is mapped to
-// https://developers.google.com/drive/v2/teamdrives/
+// https://developers.google.com/drive/v2/reference/teamdrives/list
 class TeamDriveListRequest : public DriveApiDataRequest<TeamDriveList> {
  public:
   TeamDriveListRequest(RequestSender* sender,