Plugin Placeholders: Refactor for platforms that don't support plugins

chrome/renderer/plugins/non_loadable_plugin_placeholder.h

+// Copyright 2015 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 CHROME_RENDERER_PLUGINS_NON_LOADABLE_PLUGIN_PLACEHOLDER_H_
+#define CHROME_RENDERER_PLUGINS_NON_LOADABLE_PLUGIN_PLACEHOLDER_H_
+
+#include "base/macros.h"
+
+namespace base {
+class FilePath;
+}
+
+namespace blink {
+class WebLocalFrame;
+struct WebPluginParams;
+}
+
+namespace content {
+class RenderFrame;
+}
+
+namespace plugins {
+class PluginPlaceholder;
+}
+
+class NonLoadablePluginPlaceholder {
+ public:
+  // Creates a non-loadable plugin placeholder for platforms without plugins.
+  static plugins::PluginPlaceholder* CreateNotSupportedPlugin(
+      content::RenderFrame* render_frame,
+      blink::WebLocalFrame* frame,
+      const blink::WebPluginParams& params);
+
+  static plugins::PluginPlaceholder* CreateErrorPlugin(
+      content::RenderFrame* render_frame,
+      const base::FilePath& file_path);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(NonLoadablePluginPlaceholder);
+};
+
+#endif  // CHROME_RENDERER_PLUGINS_NON_LOADABLE_PLUGIN_PLACEHOLDER_H_