Remove dead code related to media device enumerations and monitoring.

content/browser/renderer_host/media/media_stream_requester.h

Index: content/browser/renderer_host/media/media_stream_requester.h
diff --git a/content/browser/renderer_host/media/media_stream_requester.h b/content/browser/renderer_host/media/media_stream_requester.h
index fc475dde09be7739c271af280d83f303478457b4..0a3c85d6d1b295e5fadc8f52b4f55bc1491558da 100644
--- a/content/browser/renderer_host/media/media_stream_requester.h
+++ b/content/browser/renderer_host/media/media_stream_requester.h
@@ -34,19 +34,11 @@ class CONTENT_EXPORT MediaStreamRequester {
   virtual void DeviceStopped(int render_frame_id,
                              const std::string& label,
                              const StreamDeviceInfo& device) = 0;
-  // Called as a reply of a successful call to EnumerateDevices.
-  virtual void DevicesEnumerated(int render_frame_id,
-                                 int page_request_id,
-                                 const std::string& label,
-                                 const StreamDeviceInfoArray& devices) = 0;
   // Called as a reply of a successful call to OpenDevice.
   virtual void DeviceOpened(int render_frame_id,
                             int page_request_id,
                             const std::string& label,
                             const StreamDeviceInfo& device_info) = 0;
-  // Called when the set of media devices has changed, provided the
-  // MediaStreamRequester is subscribed and authorized to receive such messages.
-  virtual void DevicesChanged(MediaStreamType type) = 0;
 
  protected:
   virtual ~MediaStreamRequester() {