Implement find in page support for top level BrowserPlugins.

content/public/browser/browser_plugin_guest_delegate.cc

 // Copyright 2014 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/public/browser/browser_plugin_guest_delegate.h"
 
 namespace content {
 
 WebContents* BrowserPluginGuestDelegate::CreateNewGuestWindow(
     const WebContents::CreateParams& create_params) {
   return NULL;
 }
 
+bool BrowserPluginGuestDelegate::Find(int request_id,
+                                      const base::string16& search_text,
+                                      const blink::WebFindOptions& options,
+                                      bool is_full_page_plugin) {
+  return false;
+}
+
 }  // namespace content