Removed sending of the following IPC messages from chrome and added API's on the RenderViewHost

chrome/browser/ui/find_bar/find_tab_helper.cc

 // Copyright (c) 2011 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 "chrome/browser/ui/find_bar/find_tab_helper.h"
 
 #include <vector>
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/find_bar/find_bar_state.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/common/notification_service.h"
-#include "content/common/view_messages.h"
+#include "content/common/view_message_enums.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFindOptions.h"
 
 using WebKit::WebFindOptions;
 
 // static
 int FindTabHelper::find_request_id_counter_ = -1;
 
 FindTabHelper::FindTabHelper(TabContents* tab_contents)
     : TabContentsObserver(tab_contents),
       find_ui_active_(false),
@@ skipping 86 matching lines @@
     case FindBarController::kKeepSelection:
       params.action = ViewMsg_StopFinding_Params::kKeepSelection;
       break;
     case FindBarController::kActivateSelection:
       params.action = ViewMsg_StopFinding_Params::kActivateSelection;
       break;
     default:
       NOTREACHED();
       params.action = ViewMsg_StopFinding_Params::kKeepSelection;
   }
-  tab_contents()->render_view_host()->Send(new ViewMsg_StopFinding(
-      tab_contents()->render_view_host()->routing_id(), params));
+  tab_contents()->render_view_host()->StopFinding(params);
 }
 
 void FindTabHelper::HandleFindReply(int request_id,
                                     int number_of_matches,
                                     const gfx::Rect& selection_rect,
                                     int active_match_ordinal,
                                     bool final_update) {
   // Ignore responses for requests that have been aborted.
   // Ignore responses for requests other than the one we have most recently
   // issued. That way we won't act on stale results when the user has
@@ skipping 11 matching lines @@
     // Notify the UI, automation and any other observers that a find result was
     // found.
     last_search_result_ = FindNotificationDetails(
         request_id, number_of_matches, selection, active_match_ordinal,
         final_update);
     NotificationService::current()->Notify(
         chrome::NOTIFICATION_FIND_RESULT_AVAILABLE,
         Source<TabContents>(tab_contents()),
         Details<FindNotificationDetails>(&last_search_result_));
   }
-
-  // Send a notification to the renderer that we are ready to receive more
-  // results from the scoping effort of the Find operation. The FindInPage
-  // scoping is asynchronous and periodically sends results back up to the
-  // browser using IPC. In an effort to not spam the browser we have the
-  // browser send an ACK for each FindReply message and have the renderer
-  // queue up the latest status message while waiting for this ACK.
-  Send(new ViewMsg_FindReplyACK(routing_id()));
 }