drive: Fix a bug where special directories are suggested from autocomplete

chrome/browser/chromeos/drive/search_metadata.cc

 // Copyright (c) 2013 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.
 
 #include "chrome/browser/chromeos/drive/search_metadata.h"
 
 #include <algorithm>
 #include <queue>
 
 #include "base/bind.h"
@@ skipping 71 matching lines @@
       entry.file_specific_info().is_hosted_document())
     return false;
 
   if ((options & SEARCH_METADATA_EXCLUDE_DIRECTORIES) &&
       entry.file_info().is_directory())
     return false;
 
   if (options & SEARCH_METADATA_SHARED_WITH_ME)
     return entry.shared_with_me();
 
+  // Exclude "drive", "drive/root", and "drive/other".
+  if (entry.resource_id() == util::kDriveGrandRootSpecialResourceId ||
+      entry.parent_resource_id() == util::kDriveGrandRootSpecialResourceId) {
+    return false;
+  }
+
   return true;
 }
 
 }  // namespace
 
 // Helper class for searching the local resource metadata.
 class SearchMetadataHelper {
  public:
   SearchMetadataHelper(DriveResourceMetadata* resource_metadata,
                        const std::string& query,
@@ skipping 153 matching lines @@
   if (num_matches == 0)
     return false;
 
   std::string remaining_piece = text.substr(cursor);
   highlighted_text->append(net::EscapeForHTML(remaining_piece));
 
   return true;
 }
 
 }  // namespace drive