Revert "Fix a ton of compiler warnings."

chrome/browser/automation/automation_provider.cc

 // Copyright (c) 2009 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/browser/automation/automation_provider.h"
 
 #include <set>
 
 #include "app/l10n_util.h"
 #include "app/message_box_flags.h"
@@ skipping 922 matching lines @@
     reply_message_->WriteBool(true);
     for (size_t i = 0; i < redirects->size(); i++)
       redirects_gurl.push_back(redirects->at(i));
   } else {
     reply_message_->WriteInt(-1);  // Negative count indicates failure.
   }
 
   IPC::ParamTraits<std::vector<GURL> >::Write(reply_message_, redirects_gurl);
 
   Send(reply_message_);
-  redirect_query_ = 0;
+  redirect_query_ = NULL;
   reply_message_ = NULL;
 }
 
 bool AutomationProvider::Send(IPC::Message* msg) {
   DCHECK(channel_.get());
   return channel_->Send(msg);
 }
 
 Browser* AutomationProvider::FindAndActivateTab(
     NavigationController* controller) {
@@ skipping 1104 matching lines @@
   for (;iter != BrowserList::end(); ++iter) {
     gfx::NativeWindow this_window = (*iter)->window()->GetNativeHandle();
     if (window == this_window) {
       // Add() returns the existing handle for the resource if any.
       *browser_handle = browser_tracker_->Add(*iter);
       *success = true;
       return;
     }
   }
 }