Set drive as the default download folder

chrome/browser/chromeos/drive/file_system_util.cc

Index: chrome/browser/chromeos/drive/file_system_util.cc
diff --git a/chrome/browser/chromeos/drive/file_system_util.cc b/chrome/browser/chromeos/drive/file_system_util.cc
index 283772e6a4ec46bad193b4c92b25aae438be50ce..f8ca3b36647fcb8402807d3b87cc1449547f1675 100644
--- a/chrome/browser/chromeos/drive/file_system_util.cc
+++ b/chrome/browser/chromeos/drive/file_system_util.cc
@@ -127,6 +127,13 @@ const base::FilePath& GetDriveMyDriveRootPath() {
   return drive_root_path;
 }
 
+base::FilePath GetDriveMountPointPathForUserIdHash(
+    const std::string user_id_hash) {
+  return base::FilePath(kSpecialMountPointRoot).AppendASCII(
+      net::EscapePath(kDriveMountPointNameBase +
+                      (user_id_hash.empty() ? "" : "-" + user_id_hash)));
+}
+
 base::FilePath GetDriveMountPointPath(Profile* profile) {
   std::string id = chromeos::ProfileHelper::GetUserIdHashFromProfile(profile);
   if (id.empty()) {
@@ -141,8 +148,7 @@ base::FilePath GetDriveMountPointPath(Profile* profile) {
     if (user)
       id = user->username_hash();
   }
-  return base::FilePath(kSpecialMountPointRoot).AppendASCII(
-      net::EscapePath(kDriveMountPointNameBase + (id.empty() ? "" : "-" + id)));
+  return GetDriveMountPointPathForUserIdHash(id);
 }
 
 FileSystemInterface* GetFileSystemByProfile(Profile* profile) {