Make PepperWebPlugin not use RenderViews.

chrome/renderer/extensions/extension_frame_helper.cc

+// 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.
+
+#include "chrome/renderer/extensions/extension_frame_helper.h"
+
+#include "chrome/common/extensions/extension_messages.h"
+#include "chrome/renderer/extensions/console.h"
+#include "content/public/renderer/render_frame.h"
+#include "third_party/WebKit/public/web/WebConsoleMessage.h"
+#include "third_party/WebKit/public/web/WebFrame.h"
+
+namespace extensions {
+
+ExtensionFrameHelper::ExtensionFrameHelper(content::RenderFrame* render_frame)
+    : content::RenderFrameObserver(render_frame),
+      content::RenderFrameObserverTracker<ExtensionFrameHelper>(render_frame) {
+}
+
+ExtensionFrameHelper::~ExtensionFrameHelper() {
+}
+
+bool ExtensionFrameHelper::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(ExtensionFrameHelper, message)
+    IPC_MESSAGE_HANDLER(ExtensionMsg_AddMessageToConsole,
+                        OnAddMessageToConsole)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void ExtensionFrameHelper::OnAddMessageToConsole(
+    content::ConsoleMessageLevel level,
+    const std::string& message) {
+  console::AddMessage(render_frame()->GetRenderView(), level, message);
+}
+
+}  // namespace extensions