Remove <iostream> where possible.

chrome/common/logging_chrome.cc

 // Copyright (c) 2010 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.
 
 #include "build/build_config.h"
 
 // Need to include this before most other files because it defines
 // IPC_MESSAGE_LOG_ENABLED. We need to use it to define
 // IPC_MESSAGE_MACROS_LOG_ENABLED so render_messages.h will generate the
 // ViewMsgLog et al. functions.
 #include "ipc/ipc_message.h"
 
 // On Windows, the about:ipc dialog shows IPCs; on POSIX, we hook up a
 // logger in this file.  (We implement about:ipc on Mac but implement
 // the loggers here anyway).  We need to do this real early to be sure
 // IPC_MESSAGE_MACROS_LOG_ENABLED doesn't get undefined.
 #if defined(OS_POSIX) && defined(IPC_MESSAGE_LOG_ENABLED)
 #define IPC_MESSAGE_MACROS_LOG_ENABLED
 #include "chrome/common/devtools_messages.h"
 #include "chrome/common/plugin_messages.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/worker_messages.h"
 #endif
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
-#include <iostream>
 #include <fstream>
 
 #include "chrome/common/logging_chrome.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/debug_util.h"
 #include "base/env_var.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 246 matching lines @@
         assertions->push_back(wide_line);
       ++assertion_count;
     }
   }
   log_file.close();
 
   return assertion_count;
 }
 
 }  // namespace logging