Move more classes to use WebLocalFrameBase from WebLocalFrameImpl.

third_party/WebKit/Source/web/MediaKeysClientImpl.cpp

 // 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 "web/MediaKeysClientImpl.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
+#include "core/frame/WebLocalFrameBase.h"
 #include "public/platform/WebContentDecryptionModule.h"
 #include "public/web/WebFrameClient.h"
-#include "web/WebLocalFrameImpl.h"
 
 namespace blink {
 
 MediaKeysClientImpl::MediaKeysClientImpl() {}
 
 WebEncryptedMediaClient* MediaKeysClientImpl::EncryptedMediaClient(
     ExecutionContext* execution_context) {
   Document* document = ToDocument(execution_context);
-  WebLocalFrameImpl* web_frame =
-      WebLocalFrameImpl::FromFrame(document->GetFrame());
+  WebLocalFrameBase* web_frame =
+      WebLocalFrameBase::FromFrame(document->GetFrame());
   return web_frame->Client()->EncryptedMediaClient();
 }
 
 }  // namespace blink