3 files changed, 80 insertions, 0 deletions
diff --git a/content/public/renderer/render_process_observer.cc b/content/public/renderer/render_process_observer.cc
new file mode 100644
index 0000000..8e97cb7
--- /dev/null
+++ b/content/public/renderer/render_process_observer.cc
@@ -0,0 +1,14 @@
+// Copyright (c) 2011 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 "content/public/renderer/render_process_observer.h"
+
+namespace content {
+
+bool RenderProcessObserver::OnControlMessageReceived(
+    const IPC::Message& message) {
+  return false;
+}
+
+}  // namespace content
diff --git a/content/public/renderer/render_process_observer.h b/content/public/renderer/render_process_observer.h
new file mode 100644
index 0000000..74391fd
--- /dev/null
+++ b/content/public/renderer/render_process_observer.h
@@ -0,0 +1,42 @@
+// Copyright (c) 2011 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 CONTENT_PUBLIC_RENDERER_RENDER_PROCESS_OBSERVER_H_
+#define CONTENT_PUBLIC_RENDERER_RENDER_PROCESS_OBSERVER_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "content/common/content_export.h"
+
+namespace IPC {
+class Message;
+}
+
+namespace content {
+
+// Base class for objects that want to filter control IPC messages and get
+// notified of events.
+class CONTENT_EXPORT RenderProcessObserver {
+ public:
+  RenderProcessObserver() {}
+  virtual ~RenderProcessObserver() {}
+
+  // Allows filtering of control messages.
+  virtual bool OnControlMessageReceived(const IPC::Message& message);
+
+  // Notification that the render process is shutting down.
+  virtual void OnRenderProcessShutdown() {}
+
+  // Called right after the WebKit API is initialized.
+  virtual void WebKitInitialized() {}
+
+  virtual void IdleNotification() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(RenderProcessObserver);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_RENDERER_RENDER_PROCESS_OBSERVER_H_
diff --git a/content/public/renderer/render_view_visitor.h b/content/public/renderer/render_view_visitor.h
new file mode 100644
index 0000000..d7933c6
--- /dev/null
+++ b/content/public/renderer/render_view_visitor.h
@@ -0,0 +1,24 @@
+// 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 CONTENT_PUBLIC_RENDERER_RENDER_VIEW_VISITOR_H_
+#define CONTENT_PUBLIC_RENDERER_RENDER_VIEW_VISITOR_H_
+#pragma once
+
+class RenderView;
+
+namespace content {
+
+class RenderViewVisitor {
+ public:
+  // Return true to continue visiting RenderViews or false to stop.
+  virtual bool Visit(RenderView* render_view) = 0;
+
+ protected:
+  virtual ~RenderViewVisitor() {}
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_RENDERER_RENDER_VIEW_VISITOR_H_