Begun the DCHECK() cleanup. Starting off with /src/chrome/a* and /src/chrome/...

chrome/browser/appcache/appcache_dispatcher_host.cc

 // Copyright (c) 2011 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/appcache/appcache_dispatcher_host.h"
 
 #include "base/callback.h"
 #include "chrome/browser/appcache/chrome_appcache_service.h"
 #include "chrome/browser/metrics/user_metrics.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
@@ skipping 199 matching lines @@
     }
     return;
   }
 
   SwapCacheCallback(false, reply_msg);
 }
 
 void AppCacheDispatcherHost::GetStatusCallback(
     appcache::Status status, void* param) {
   IPC::Message* reply_msg = reinterpret_cast<IPC::Message*>(param);
-  DCHECK(reply_msg == pending_reply_msg_.get());
+  DCHECK_EQ(reply_msg, pending_reply_msg_.get());
   AppCacheMsg_GetStatus::WriteReplyParams(reply_msg, status);
   Send(pending_reply_msg_.release());
 }
 
 void AppCacheDispatcherHost::StartUpdateCallback(bool result, void* param) {
   IPC::Message* reply_msg = reinterpret_cast<IPC::Message*>(param);
-  DCHECK(reply_msg == pending_reply_msg_.get());
+  DCHECK_EQ(reply_msg, pending_reply_msg_.get());
   AppCacheMsg_StartUpdate::WriteReplyParams(reply_msg, result);
   Send(pending_reply_msg_.release());
 }
 
 void AppCacheDispatcherHost::SwapCacheCallback(bool result, void* param) {
   IPC::Message* reply_msg = reinterpret_cast<IPC::Message*>(param);
-  DCHECK(reply_msg == pending_reply_msg_.get());
+  DCHECK_EQ(reply_msg, pending_reply_msg_.get());
   AppCacheMsg_SwapCache::WriteReplyParams(reply_msg, result);
   Send(pending_reply_msg_.release());
 }