drive: Add ResourceMetadataStorage::Iterator::GetCacheEntry()

chrome/browser/chromeos/drive/search_metadata.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_SEARCH_METADATA_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_SEARCH_METADATA_H_
 
 #include <string>
 
 #include "chrome/browser/chromeos/drive/file_system_interface.h"
 
 namespace base {
 namespace i18n {
 class FixedPatternStringSearchIgnoringCaseAndAccents;
 }  // namespace i18n
 }  // namespace base
 
 namespace drive {
 namespace internal {
 
-class FileCache;
 class ResourceMetadata;
 
 // Searches the local resource metadata, and returns the entries
 // |at_most_num_matches| that contain |query| in their base names. Search is
 // done in a case-insensitive fashion. The eligible entries are selected based
 // on the given |options|, which is a bit-wise OR of SearchMetadataOptions.
 // |callback| must not be null. Must be called on UI thread. Empty |query|
 // matches any base name. i.e. returns everything. |blocking_task_runner| must
 // be the same one as |resource_metadata| uses.
 void SearchMetadata(
     scoped_refptr<base::SequencedTaskRunner> blocking_task_runner,
     ResourceMetadata* resource_metadata,
-    FileCache* cache,
     const std::string& query,
     int search_options,
     int at_most_num_matches,
     const SearchMetadataCallback& callback);
 
 // Finds |query| in |text| while ignoring cases or accents. Cases of non-ASCII
 // characters are also ignored; they are compared in the 'Primary Level' of
 // http://userguide.icu-project.org/collation/concepts.
 // Returns true if |query| is found. |highlighted_text| will have the original
 // text with matched portions highlighted with <b> tag (only the first match
 // is highlighted). Meta characters are escaped like &lt;. The original
 // contents of |highlighted_text| will be lost.
 bool FindAndHighlight(
     const std::string& text,
     base::i18n::FixedPatternStringSearchIgnoringCaseAndAccents* query,
     std::string* highlighted_text);
 
 }  // namespace internal
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_SEARCH_METADATA_H_