Convert std::wstring encoding names to std::string in a bunch of files.

chrome/test/automation/tab_proxy.cc

 // 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.
 
 #include "chrome/test/automation/tab_proxy.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "chrome/common/json_value_serializer.h"
@@ skipping 627 matching lines @@
 
   AutomationMsg_NavigationResponseValues result =
       AUTOMATION_MSG_NAVIGATION_ERROR;
   sender_->Send(new AutomationMsg_WaitForNavigation(0, handle_,
                                                     last_navigation_time,
                                                     &result));
   return result == AUTOMATION_MSG_NAVIGATION_SUCCESS ||
       result == AUTOMATION_MSG_NAVIGATION_AUTH_NEEDED;
 }
 
-bool TabProxy::GetPageCurrentEncoding(std::wstring* encoding) {
+bool TabProxy::GetPageCurrentEncoding(std::string* encoding) {
   if (!is_valid())
     return false;
 
   bool succeeded = sender_->Send(
       new AutomationMsg_GetPageCurrentEncoding(0, handle_, encoding));
   return succeeded;
 }
 
-bool TabProxy::OverrideEncoding(const std::wstring& encoding) {
+bool TabProxy::OverrideEncoding(const std::string& encoding) {
   if (!is_valid())
     return false;
 
   bool succeeded = false;
   sender_->Send(new AutomationMsg_OverrideEncoding(0, handle_, encoding,
                                                    &succeeded));
   return succeeded;
 }
 
 #if defined(OS_WIN)
@@ skipping 54 matching lines @@
   AutoLock lock(list_lock_);
   observers_list_.RemoveObserver(observer);
 }
 
 // Called on Channel background thread, if TabMessages filter is installed.
 void TabProxy::OnMessageReceived(const IPC::Message& message) {
   AutoLock lock(list_lock_);
   FOR_EACH_OBSERVER(TabProxyDelegate, observers_list_,
                     OnMessageReceived(this, message));
 }