Implement enumerateDevices() according to spec.

Source/modules/mediastream/NavigatorMediaStream.cpp

Index: Source/modules/mediastream/NavigatorMediaStream.cpp
diff --git a/Source/modules/mediastream/NavigatorMediaStream.cpp b/Source/modules/mediastream/NavigatorMediaStream.cpp
index 63fc6a0b288f0b4b9f70c287c4ccdadfc4a5409f..b650a63eb54ac76458ef58e32183b23d9f90c618 100644
--- a/Source/modules/mediastream/NavigatorMediaStream.cpp
+++ b/Source/modules/mediastream/NavigatorMediaStream.cpp
@@ -32,7 +32,6 @@
 #include "core/frame/Settings.h"
 #include "core/frame/UseCounter.h"
 #include "core/page/Page.h"
-#include "modules/mediastream/MediaDeviceInfoCallback.h"
 #include "modules/mediastream/MediaDevicesRequest.h"
 #include "modules/mediastream/NavigatorUserMediaErrorCallback.h"
 #include "modules/mediastream/NavigatorUserMediaSuccessCallback.h"
@@ -81,22 +80,4 @@ void NavigatorMediaStream::webkitGetUserMedia(Navigator& navigator, const Dictio
     request->start();
 }
 
-void NavigatorMediaStream::getMediaDevices(Navigator& navigator, MediaDeviceInfoCallback* callback, ExceptionState& exceptionState)
-{
-    UserMediaController* userMedia = UserMediaController::from(navigator.frame());
-    if (!userMedia) {
-        exceptionState.throwDOMException(NotSupportedError, "No media device controller available; is this a detached window?");
-        return;
-    }
-
-    MediaDevicesRequest* request = MediaDevicesRequest::create(navigator.frame()->document(), userMedia, callback, exceptionState);
-    if (!request) {
-        if (!exceptionState.hadException())
-            exceptionState.throwDOMException(NotSupportedError, "Failed to request media devices.");
-        return;
-    }
-
-    request->start();
-}
-
 } // namespace blink