Make PepperWebPlugin not use RenderViews.

chrome/renderer/extensions/extension_frame_helper.h

+// Copyright 2013 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_EXTENSIONS_EXTENSION_FRAME_HELPER_H_
+#define CHROME_RENDERER_EXTENSIONS_EXTENSION_FRAME_HELPER_H_
+
+#include "content/public/common/console_message_level.h"
+#include "content/public/renderer/render_frame_observer.h"
+#include "content/public/renderer/render_frame_observer_tracker.h"
+
+namespace extensions {
+
+// RenderFrame-level plumbing for extension features.
+class ExtensionFrameHelper
+    : public content::RenderFrameObserver,
+      public content::RenderFrameObserverTracker<ExtensionFrameHelper> {
+ public:
+  explicit ExtensionFrameHelper(content::RenderFrame* render_frame);
+  virtual ~ExtensionFrameHelper();
+
+ private:
+  // RenderFrameObserver implementation.
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+  // IPC handlers.
+  void OnAddMessageToConsole(content::ConsoleMessageLevel level,
+                             const std::string& message);
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionFrameHelper);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_RENDERER_EXTENSIONS_EXTENSION_FRAME_HELPER_H_