Migrate MediaStream test code from content/shell/renderer/ to content/test/.

content/shell/renderer/webkit_test_runner.cc

 // 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/renderer/webkit_test_runner.h"
 
 #include <algorithm>
 #include <clocale>
 #include <cmath>
 
@@ skipping 172 matching lines @@
 
 }  // namespace
 
 WebKitTestRunner::WebKitTestRunner(RenderView* render_view)
     : RenderViewObserver(render_view),
       RenderViewObserverTracker<WebKitTestRunner>(render_view),
       proxy_(NULL),
       focused_view_(NULL),
       is_main_window_(false),
       focus_on_next_commit_(false) {
+  UseMockMediaStreams(render_view);
 }
 
 WebKitTestRunner::~WebKitTestRunner() {
 }
 
 // WebTestDelegate  -----------------------------------------------------------
 
 void WebKitTestRunner::clearEditCommand() {
   render_view()->ClearEditCommands();
 }
@@ skipping 461 matching lines @@
       ->loadRequest(WebURLRequest(GURL("about:blank")));
   Send(new ShellViewHostMsg_ResetDone(routing_id()));
 }
 
 void WebKitTestRunner::OnNotifyDone() {
   render_view()->GetWebView()->mainFrame()->executeScript(
       WebScriptSource(WebString::fromUTF8("testRunner.notifyDone();")));
 }
 
 }  // namespace content