Files.app: Add an private API to get a download URL

chrome/browser/drive/fake_drive_service.cc

Index: chrome/browser/drive/fake_drive_service.cc
diff --git a/chrome/browser/drive/fake_drive_service.cc b/chrome/browser/drive/fake_drive_service.cc
index c69b2166b03cba0d4fc8678dc558c3d741ceae42..8c98e00a70643aca0452c093fbbbe14f34a9cd57 100644
--- a/chrome/browser/drive/fake_drive_service.cc
+++ b/chrome/browser/drive/fake_drive_service.cc
@@ -47,7 +47,7 @@ using google_apis::GDATA_NO_CONNECTION;
 using google_apis::GDATA_OTHER_ERROR;
 using google_apis::GDataErrorCode;
 using google_apis::GetContentCallback;
-using google_apis::GetShareUrlCallback;
+using google_apis::GetUrlCallback;
 using google_apis::HTTP_BAD_REQUEST;
 using google_apis::HTTP_CREATED;
 using google_apis::HTTP_NOT_FOUND;
@@ -514,10 +514,9 @@ CancelCallback FakeDriveService::GetFileResource(
   return CancelCallback();
 }
 
-CancelCallback FakeDriveService::GetShareUrl(
-    const std::string& resource_id,
-    const GURL& /* embed_origin */,
-    const GetShareUrlCallback& callback) {
+CancelCallback FakeDriveService::GetShareUrl(const std::string& resource_id,
+                                             const GURL& /* embed_origin */,
+                                             const GetUrlCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
@@ -1400,8 +1399,10 @@ const FakeDriveService::EntryInfo* FakeDriveService::AddNewEntry(
 
   std::string escaped_resource_id = net::EscapePath(resource_id);
 
-  // Set mime type.
+  // Set download URL and mime type.
   new_file->set_mime_type(content_type);
+  new_file->set_download_url(
+      GURL("https://xxx/content/" + escaped_resource_id));
 
   // Set alternate link if needed.
   if (content_type == util::kGoogleDocumentMimeType)