chrome: Cleanup class/struct forward declarations

chrome/browser/devtools/devtools_file_system_indexer.h

 // Copyright 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_DEVTOOLS_DEVTOOLS_FILE_SYSTEM_INDEXER_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_SYSTEM_INDEXER_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/files/file_proxy.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 
-class Profile;
-
 namespace base {
 class FilePath;
 class FileEnumerator;
 class Time;
 }
 
-namespace content {
-class WebContents;
-}
-
 class DevToolsFileSystemIndexer
     : public base::RefCountedThreadSafe<DevToolsFileSystemIndexer> {
  public:
 
   typedef base::Callback<void(int)> TotalWorkCallback;
   typedef base::Callback<void(int)> WorkedCallback;
   typedef base::Callback<void()> DoneCallback;
   typedef base::Callback<void(const std::vector<std::string>&)> SearchCallback;
 
   class FileSystemIndexingJob : public base::RefCounted<FileSystemIndexingJob> {
@@ skipping 63 matching lines @@
   virtual ~DevToolsFileSystemIndexer();
 
   void SearchInPathOnFileThread(const std::string& file_system_path,
                                 const std::string& query,
                                 const SearchCallback& callback);
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsFileSystemIndexer);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_SYSTEM_INDEXER_H_