Implement BrowserPluginPlaceholder.

content/renderer/browser_plugin/browser_plugin_constants.cc

Index: content/renderer/browser_plugin/browser_plugin_constants.cc
diff --git a/content/renderer/browser_plugin/browser_plugin_constants.cc b/content/renderer/browser_plugin/browser_plugin_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9e62b9ef594d9aa561b42de35943a97575678433
--- /dev/null
+++ b/content/renderer/browser_plugin/browser_plugin_constants.cc
@@ -0,0 +1,10 @@
+// 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/renderer/browser_plugin/browser_plugin_constants.h"
+
+const char kBrowserPluginName[] = "Browser Plugin";
+const char kBrowserPluginMimeType[] = "application/browser-plugin";
+const char kBrowserPluginPath[] = "internal/browser-plugin";
+const char kBrowserPluginDescription[] = "Out-of-Process Browser Plugin";