second stage

third_party/WebKit/Source/modules/mime_handler_view/MimeHandlerView.h

+// Copyright 2017 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.
+
+#ifndef MimeHanderView_h
+#define MimeHanderView_h
+
+#include "core/plugins/PluginClient.h"
+#include "modules/ModulesExport.h"
+#include "platform/heap/GarbageCollected.h"
+#include "platform/heap/Persistent.h"
+#include "public/platform/WebString.h"
+#include "public/platform/WebURL.h"
+#include "public/platform/modules/mime_handler_view/mime_handler_view.mojom-blink.h"
+#include "public/web/WebAssociatedURLLoader.h"
+
+namespace blink {
+class HTMLPlugInElement;
+class LocalFrame;
+class WebString;
+
+class MODULES_EXPORT MimeHandlerView final : public PluginClient {
+ public:
+  static MimeHandlerView* create(HTMLPlugInElement*,
+                                 const WebURL&,
+                                 const WebString&,
+                                 int32_t);
+  ~MimeHandlerView();
+
+  // Verifies that the MimeHandlerViewService exists and can handle the mime
+  // type.
+  bool initialize();
+  void close();
+
+  // PluginClient override.
+  v8::Local<v8::Object> scriptableObject(v8::Isolate*) override;
+
+ private:
+  explicit MimeHandlerView(HTMLPlugInElement*, const WebURL&, const WebString&, int32_t);
+
+  LocalFrame* embedderFrame();
+  void createWebUrlRequestForResource();
+  mojom::blink::MimeHandlerViewServicePtr mimeHandlerViewService();
+  void createMimeHandlerView(const WebString&);
+
+  WebString m_mimeType;
+  WebURL m_resourceUrl;
+  int32_t m_elementInstanceId;
+  std::unique_ptr<blink::WebAssociatedURLLoader> m_loader;
+};
+}
+
+#endif  // MimeHanderView_h