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

chrome/browser/media/media_stream_device_permissions.cc

 // Copyright 2014 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/media/media_stream_device_permissions.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 30 matching lines @@
   DCHECK(type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC ||
          type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
   return profile->GetHostContentSettingsMap()->ShouldAllowAllContent(
       security_origin, security_origin, type);
 }
 
 MediaStreamDevicePolicy GetDevicePolicy(Profile* profile,
                                         const GURL& security_origin,
                                         const char* policy_name,
                                         const char* whitelist_policy_name) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
   // If the security origin policy matches a value in the whitelist, allow it.
   // Otherwise, check the |policy_name| master switch for the default behavior.
 
   PrefService* prefs = profile->GetPrefs();
 
   // TODO(tommi): Remove the kiosk mode check when the whitelist below
   // is visible in the media exceptions UI.
   // See discussion here: https://codereview.chromium.org/15738004/
   if (IsInKioskMode()) {
@@ skipping 16 matching lines @@
 
   // If a match was not found, check if audio capture is otherwise disallowed
   // or if the user should be prompted.  Setting the policy value to "true"
   // is equal to not setting it at all, so from hereon out, we will return
   // either POLICY_NOT_SET (prompt) or ALWAYS_DENY (no prompt, no access).
   if (!prefs->GetBoolean(policy_name))
     return ALWAYS_DENY;
 
   return POLICY_NOT_SET;
 }