favor DCHECK_CURRENTLY_ON for better logs in components/ (part 2)

components/data_reduction_proxy/content/browser/data_reduction_proxy_debug_resource_throttle.cc

 // Copyright 2015 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 "components/data_reduction_proxy/content/browser/data_reduction_proxy_debug_resource_throttle.h"
 
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_debug_ui_service.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params.h"
@@ skipping 27 matching lines @@
             request, resource_type, io_data->debug_ui_service(),
             io_data->config()));
   }
   return nullptr;
 }
 
 // static
 void DataReductionProxyDebugResourceThrottle::StartDisplayingBlockingPage(
     scoped_refptr<DataReductionProxyDebugUIManager> ui_manager,
     const DataReductionProxyDebugUIManager::BypassResource& resource) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   ui_manager->DisplayBlockingPage(resource);
 }
 
 DataReductionProxyDebugResourceThrottle::
 DataReductionProxyDebugResourceThrottle(
     const net::URLRequest* request,
     content::ResourceType resource_type,
     const DataReductionProxyDebugUIService* ui_service,
     const DataReductionProxyConfig* config)
     : state_(NOT_BYPASSED),
@@ skipping 79 matching lines @@
 void
 DataReductionProxyDebugResourceThrottle::OnBlockingPageComplete(bool proceed) {
   state_ = NOT_BYPASSED;
   if (proceed)
     controller()->Resume();
   else
     controller()->Cancel();
 }
 
 }  // namespace data_reduction_proxy