Convert some non-debug logging on content/common to debug logging.

content/common/npobject_stub.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 "content/common/npobject_stub.h"
 
 #include "base/command_line.h"
 #include "content/common/np_channel_base.h"
 #include "content/common/npobject_util.h"
 #include "content/common/plugin_messages.h"
@@ skipping 19 matching lines @@
       page_url_(page_url) {
   channel_->AddMappingForNPObjectStub(route_id, npobject);
   channel_->AddRoute(route_id, this, this);
 
   // We retain the object just as PluginHost does if everything was in-process.
   WebBindings::retainObject(npobject_);
 }
 
 NPObjectStub::~NPObjectStub() {
   channel_->RemoveRoute(route_id_);
-  CHECK(!npobject_);
+  DCHECK(!npobject_);
 }
 
 void NPObjectStub::DeleteSoon() {
   if (npobject_) {
     channel_->RemoveMappingForNPObjectStub(route_id_, npobject_);
 
     // We need to NULL npobject_ prior to calling releaseObject() to avoid
     // problems with re-entrancy. See http://crbug.com/94179#c17 for more
     // details on how this can happen.
     NPObject* npobject = npobject_;
@@ skipping 337 matching lines @@
 
   bool return_value = WebBindings::evaluateHelper(0, popups_allowed, npobject_,
                                                   &script_string, &result_var);
 
   NPVariant_Param result_param;
   CreateNPVariantParam(
       result_var, channel_, &result_param, true, containing_window_, page_url_);
   NPObjectMsg_Evaluate::WriteReplyParams(reply_msg, result_param, return_value);
   channel_->Send(reply_msg);
 }