Remove dead code related to media device enumerations and monitoring.

content/renderer/pepper/pepper_media_device_manager.cc

Index: content/renderer/pepper/pepper_media_device_manager.cc
diff --git a/content/renderer/pepper/pepper_media_device_manager.cc b/content/renderer/pepper/pepper_media_device_manager.cc
index ead7c594b05f117b33c940911bf975aa96fb91c6..84e12b2e521d590a04d883e85781b7ca6cd42558 100644
--- a/content/renderer/pepper/pepper_media_device_manager.cc
+++ b/content/renderer/pepper/pepper_media_device_manager.cc
@@ -186,12 +186,6 @@ void PepperMediaDeviceManager::OnDeviceStopped(
     const std::string& label,
     const StreamDeviceInfo& device_info) {}
 
-void PepperMediaDeviceManager::OnDevicesEnumerated(
-    int request_id,
-    const StreamDeviceInfoArray& device_array) {
-  NOTREACHED();
-}
-
 void PepperMediaDeviceManager::OnDeviceOpened(
     int request_id,
     const std::string& label,
@@ -203,8 +197,6 @@ void PepperMediaDeviceManager::OnDeviceOpenFailed(int request_id) {
   NotifyDeviceOpened(request_id, false, std::string());
 }
 
-void PepperMediaDeviceManager::OnDevicesChanged() {}
-
 // static
 MediaStreamType PepperMediaDeviceManager::FromPepperDeviceType(
     PP_DeviceType_Dev type) {