[chrome/browser/renderer_host] favor DCHECK_CURRENTLY_ON for better logs

chrome/browser/renderer_host/pepper/device_id_fetcher.cc

Index: chrome/browser/renderer_host/pepper/device_id_fetcher.cc
diff --git a/chrome/browser/renderer_host/pepper/device_id_fetcher.cc b/chrome/browser/renderer_host/pepper/device_id_fetcher.cc
index 3582bdc5fec539447ea9d987af4a81e0ad5deca5..b859d2253cc277c25a5de9810c967955ed23de78 100644
--- a/chrome/browser/renderer_host/pepper/device_id_fetcher.cc
+++ b/chrome/browser/renderer_host/pepper/device_id_fetcher.cc
@@ -56,13 +56,13 @@ void GetMachineIDAsync(
 
 DeviceIDFetcher::DeviceIDFetcher(int render_process_id)
     : in_progress_(false), render_process_id_(render_process_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
 }
 
 DeviceIDFetcher::~DeviceIDFetcher() {}
 
 bool DeviceIDFetcher::Start(const IDCallback& callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   if (in_progress_)
     return false;
@@ -91,7 +91,7 @@ base::FilePath DeviceIDFetcher::GetLegacyDeviceIDPath(
 }
 
 void DeviceIDFetcher::CheckPrefsOnUIThread() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   Profile* profile = NULL;
   RenderProcessHost* render_process_host =
@@ -135,7 +135,7 @@ void DeviceIDFetcher::CheckPrefsOnUIThread() {
 
 void DeviceIDFetcher::ComputeOnUIThread(const std::string& salt,
                                         const std::string& machine_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (machine_id.empty()) {
     LOG(ERROR) << "Empty machine id";