Create render view for extensions on Linux.

chrome/browser/gtk/extension_view_gtk.h

Index: chrome/browser/gtk/extension_view_gtk.h
diff --git a/chrome/browser/gtk/extension_view_gtk.h b/chrome/browser/gtk/extension_view_gtk.h
new file mode 100644
index 0000000000000000000000000000000000000000..61e58fd4fdc2d6ad756844e7970f0f9dfbbb3d49
--- /dev/null
+++ b/chrome/browser/gtk/extension_view_gtk.h
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+// Copyright (c) 2009 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_BROWSER_GTK_EXTENSION_VIEW_GTK_H_
+#define CHROME_BROWSER_GTK_EXTENSION_VIEW_GTK_H_
+
+#include "base/basictypes.h"
+#include "base/gfx/native_widget_types.h"
+
+class ExtensionHost;
+class RenderViewHost;
+class RenderWidgetHostViewGtk;
+
+class ExtensionViewGtk {
+ public:
+  explicit ExtensionViewGtk(ExtensionHost* extension_host);
+
+  gfx::NativeView native_view();
+
+ private:
+  RenderViewHost* render_view_host() const;
+
+  void CreateWidgetHostView();
+
+  ExtensionHost* extension_host_;
+
+  RenderWidgetHostViewGtk* render_widget_host_view_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionViewGtk);
+};
+
+#endif  // CHROME_BROWSER_GTK_EXTENSION_VIEW_GTK_H_