Cleanup: Remove unneeded forward declarations from various chrome/browser subdirectories.

chrome/browser/safe_browsing/download_protection_service.h

 // Copyright (c) 2011 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.
 //
 // Helper class which handles communication with the SafeBrowsing servers for
 // improved binary download protection.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_SERVICE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_SERVICE_H_
 #pragma once
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "googleurl/src/gurl.h"
 
-namespace net {
-class URLRequestContextGetter;
-class URLRequestStatus;
-}  // namespace net
 class DownloadItem;
 class SafeBrowsingService;
 
+namespace net {
+class URLRequestContextGetter;
+}  // namespace net
+
 namespace safe_browsing {
 class SignatureUtil;
 
 // This class provides an asynchronous API to check whether a particular
 // client download is malicious or not.
 class DownloadProtectionService {
  public:
   // TODO(noelutz): we're missing some fields here: server IPs,
   // tab URL redirect chain, ...
   struct DownloadInfo {
@@ skipping 115 matching lines @@
   bool enabled_;
 
   // SignatureUtil object, may be overridden for testing.
   scoped_refptr<SignatureUtil> signature_util_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadProtectionService);
 };
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_SERVICE_H_