Add an empty ShellRenderViewObserver.

I plan to add IPCs so the content_shell can request a text dump of a given render view.

BUG=111316
TEST=none


Review URL: http://codereview.chromium.org/9113057

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@119188 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 53 insertions, 0 deletions

diff --git a/content/content_shell.gypi b/content/content_shell.gypi
index 997958e..bfed4b5 100644
--- a/content/content_shell.gypi
+++ b/content/content_shell.gypi
@@ -66,6 +66,8 @@
         'shell/shell_download_manager_delegate.h',
         'shell/shell_main_delegate.cc',
         'shell/shell_main_delegate.h',
+        'shell/shell_render_view_observer.cc',
+        'shell/shell_render_view_observer.h',
         'shell/shell_resource_context.cc',
         'shell/shell_resource_context.h',
         'shell/shell_url_request_context_getter.cc',
diff --git a/content/shell/shell_content_renderer_client.cc b/content/shell/shell_content_renderer_client.cc
index b1f0d41..0ec2adb 100644
--- a/content/shell/shell_content_renderer_client.cc
+++ b/content/shell/shell_content_renderer_client.cc
@@ -4,6 +4,7 @@
 
 #include "content/shell/shell_content_renderer_client.h"
 
+#include "content/shell/shell_render_view_observer.h"
 #include "v8/include/v8.h"
 
 namespace content {
@@ -15,6 +16,7 @@ void ShellContentRendererClient::RenderThreadStarted() {
 }
 
 void ShellContentRendererClient::RenderViewCreated(RenderView* render_view) {
+  new content::ShellRenderViewObserver(render_view);
 }
 
 void ShellContentRendererClient::SetNumberOfViews(int number_of_views) {
diff --git a/content/shell/shell_render_view_observer.cc b/content/shell/shell_render_view_observer.cc
new file mode 100644
index 0000000..942f601
--- /dev/null
+++ b/content/shell/shell_render_view_observer.cc
@@ -0,0 +1,20 @@
+// Copyright (c) 2012 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/shell/shell_render_view_observer.h"
+
+namespace content {
+
+ShellRenderViewObserver::ShellRenderViewObserver(RenderView* render_view)
+    : RenderViewObserver(render_view) {
+}
+
+ShellRenderViewObserver::~ShellRenderViewObserver() {
+}
+
+bool ShellRenderViewObserver::OnMessageReceived(const IPC::Message& message) {
+  return false;
+}
+
+}  // namespace content
diff --git a/content/shell/shell_render_view_observer.h b/content/shell/shell_render_view_observer.h
new file mode 100644
index 0000000..c1d963f
--- /dev/null
+++ b/content/shell/shell_render_view_observer.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2012 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_SHELL_SHELL_RENDER_VIEW_OBSERVER_H_
+#define CONTENT_SHELL_SHELL_RENDER_VIEW_OBSERVER_H_
+#pragma once
+
+#include "content/public/renderer/render_view_observer.h"
+
+namespace content {
+
+// This class holds the content_shell specific parts of RenderView, and has the
+// same lifetime.
+class ShellRenderViewObserver : public RenderViewObserver {
+ public:
+  explicit ShellRenderViewObserver(RenderView* render_view);
+  virtual ~ShellRenderViewObserver();
+
+  // RenderViewObserver implementation.
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellRenderViewObserver);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_SHELL_SHELL_RENDER_VIEW_OBSERVER_H_