Use a fresh, temporary profile when running content_shell in DRT mode

content/shell/layout_test_controller_bindings.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/layout_test_controller_bindings.h"
 
 #include "base/string_piece.h"
 #include "content/public/renderer/render_view.h"
 #include "content/shell/shell_messages.h"
 #include "grit/shell_resources.h"
@@ skipping 106 matching lines @@
 v8::Handle<v8::FunctionTemplate>
 LayoutTestControllerBindings::GetNativeFunction(v8::Handle<v8::String> name) {
   if (name->Equals(v8::String::New("NotifyDone")))
     return v8::FunctionTemplate::New(NotifyDone);
   if (name->Equals(v8::String::New("SetDumpAsText")))
     return v8::FunctionTemplate::New(SetDumpAsText);
   if (name->Equals(v8::String::New("SetDumpChildFramesAsText")))
     return v8::FunctionTemplate::New(SetDumpChildFramesAsText);
   if (name->Equals(v8::String::New("SetPrinting")))
     return v8::FunctionTemplate::New(SetPrinting);
+  if (name->Equals(v8::String::New(
+          "SetShouldStayOnPageAfterHandlingBeforeUnload"))) {
+    return v8::FunctionTemplate::New(
+        SetShouldStayOnPageAfterHandlingBeforeUnload);
+  }
   if (name->Equals(v8::String::New("SetWaitUntilDone")))
     return v8::FunctionTemplate::New(SetWaitUntilDone);
 
   NOTREACHED();
   return v8::FunctionTemplate::New();
 }
 
 }  // namespace content