components: Cleanup class/struct fwd declarations

components/feedback/feedback_util.h

 // Copyright 2014 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 COMPONENTS_FEEDBACK_FEEDBACK_UTIL_H_
 #define COMPONENTS_FEEDBACK_FEEDBACK_UTIL_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "build/build_config.h"
 
 #if defined(OS_MACOSX)
 #include "base/sys_info.h"
 #elif defined(OS_WIN)
 #include "base/win/windows_version.h"
 #endif
 
-class Profile;
-
-namespace content {
-class WebContents;
-}
-
 namespace chrome {
 extern const char kAppLauncherCategoryTag[];
 }  // namespace chrome
 
 namespace feedback {
 class FeedbackData;
 }
 
 namespace feedback_util {
 
   void SendReport(scoped_refptr<feedback::FeedbackData> data);
   bool ZipString(const base::FilePath& filename,
                  const std::string& data, std::string* compressed_data);
 
 }  // namespace feedback_util
 
 #endif  // COMPONENTS_FEEDBACK_FEEDBACK_UTIL_H_