Pepper audio basic functionality unit test, take 3.

chrome/renderer/mock_render_thread.cc

Index: chrome/renderer/mock_render_thread.cc
diff --git a/chrome/renderer/mock_render_thread.cc b/chrome/renderer/mock_render_thread.cc
index 1fa513fe0c138533696645b82c5d0681fcc71958..cda4fefe5dd5c94e0e35c7f559b5555aa92849bb 100644
--- a/chrome/renderer/mock_render_thread.cc
+++ b/chrome/renderer/mock_render_thread.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
@@ -34,6 +34,16 @@ void MockRenderThread::RemoveRoute(int32 routing_id) {
   widget_ = NULL;
 }
 
+// Called by, for example, RenderView::Init(), when adding a new message filter.
+void MockRenderThread::AddFilter(IPC::ChannelProxy::MessageFilter* filter) {
+  filter->OnFilterAdded(&sink());
+}
+
+// Called when the filter is removed.
+void MockRenderThread::RemoveFilter(IPC::ChannelProxy::MessageFilter* filter) {
+  filter->OnFilterRemoved();
+}
+
 // Called by the Widget. Used to send messages to the browser.
 // We short-circuit the mechanim and handle the messages right here on this
 // class.