Revert "Fix a ton of compiler warnings."

ipc/ipc_logging.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2006-2008 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 IPC_IPC_LOGGING_H_
 #define IPC_IPC_LOGGING_H_
 
 #include "ipc/ipc_message.h"  // For IPC_MESSAGE_LOG_ENABLED.
 
 #ifdef IPC_MESSAGE_LOG_ENABLED
 
@@ skipping 11 matching lines @@
 // One instance per process.  Needs to be created on the main thread (the UI
 // thread in the browser) but OnPreDispatchMessage/OnPostDispatchMessage
 // can be called on other threads.
 class Logging : public base::WaitableEventWatcher::Delegate,
                 public MessageLoop::DestructionObserver {
  public:
   // Implemented by consumers of log messages.
   class Consumer {
    public:
     virtual void Log(const LogData& data) = 0;
-   protected:
-    ~Consumer() {}
   };
 
   void SetConsumer(Consumer* consumer);
 
   ~Logging();
   static Logging* current();
 
   void Enable();
   void Disable();
   bool Enabled() const { return enabled_; }
@@ skipping 60 matching lines @@
   Consumer* consumer_;
 
   static LogFunction *log_function_mapping_;
 };
 
 }  // namespace IPC
 
 #endif // IPC_MESSAGE_LOG_ENABLED
 
 #endif  // IPC_IPC_LOGGING_H_