Implement a shell of FindRequestManager, and hook it up to WebContentsImpl.

android_webview/browser/find_helper.h

 // 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.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_FIND_HELPER_H_
 #define ANDROID_WEBVIEW_BROWSER_FIND_HELPER_H_
 
 #include "base/macros.h"
 #include "content/public/browser/web_contents_observer.h"
 
@@ skipping 25 matching lines @@
   void HandleFindReply(int request_id,
                        int match_count,
                        int active_ordinal,
                        bool finished);
 
   // Methods valid in both synchronous and asynchronous modes.
   void FindNext(bool forward);
   void ClearMatches();
 
  private:
-  void StartNewRequest(const base::string16& search_string);
+  void StartNewSession(const base::string16& search_string);
   bool MaybeHandleEmptySearch(const base::string16& search_string);
   void NotifyResults(int active_ordinal, int match_count, bool finished);
 
   // Listener results are reported to.
   Listener* listener_;
 
   // Used to check the validity of FindNext operations.
   bool async_find_started_;
 
   // Used to provide different ids to each request and for result
   // verification in asynchronous calls.
   int find_request_id_counter_;
   int current_request_id_;
 
   // Required by FindNext and the incremental find replies.
   base::string16 last_search_string_;
   int last_match_count_;
   int last_active_ordinal_;
 
   DISALLOW_COPY_AND_ASSIGN(FindHelper);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_FIND_HELPER_H_