refactor to Introduce AUDIO_CAPTURE and VIDEO_CAPTURE permissions.

chrome/browser/permissions/permission_context_uma_util.cc

Index: chrome/browser/permissions/permission_context_uma_util.cc
diff --git a/chrome/browser/permissions/permission_context_uma_util.cc b/chrome/browser/permissions/permission_context_uma_util.cc
index 79ced9ec5ee25159de919096f1d94504c9a62291..8a917559ffd9df6604b072a22a3ab4b61a434c2b 100644
--- a/chrome/browser/permissions/permission_context_uma_util.cc
+++ b/chrome/browser/permissions/permission_context_uma_util.cc
@@ -205,6 +205,10 @@ std::string PermissionTypeToString(PermissionType permission_type) {
       return "DurableStorage";
     case PermissionType::MIDI:
       return "Midi";
+    case PermissionType::AUDIO_CAPTURE:
+      return "AudioRecording";
+    case PermissionType::VIDEO_CAPTURE:
+      return "VideoRecording";

[xhwang, 2015/09/02 22:27:28]

Should we s/Recording/Capture?

     case PermissionType::NUM:
       break;
   }