Browser Plugin: Implement CanGoBack/CanGoForward

content/browser/browser_plugin/browser_plugin_guest.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/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <algorithm>
 
 #include "base/string_util.h"
 #include "content/browser/browser_plugin/browser_plugin_guest_helper.h"
@@ skipping 365 matching lines @@
           instance_id(), old_url, new_url, is_top_level));
 }
 
 void BrowserPluginGuest::DidCommitProvisionalLoadForFrame(
     int64 frame_id,
     bool is_main_frame,
     const GURL& url,
     PageTransition transition_type,
     RenderViewHost* render_view_host) {
   // Inform its embedder of the updated URL.
-  if (is_main_frame) {
-    SendMessageToEmbedder(
-        new BrowserPluginMsg_DidNavigate(
-            instance_id(),
-            url,
-            render_view_host->GetProcess()->GetID()));
-    RecordAction(UserMetricsAction("BrowserPlugin.Guest.DidNavigate"));
-  }
+  BrowserPluginMsg_DidNavigate_Params params;
+  params.url = url;
+  params.is_top_level = is_main_frame;
+  params.process_id = render_view_host->GetProcess()->GetID();
+  params.current_entry_index =
+      web_contents()->GetController().GetCurrentEntryIndex();
+  params.entry_count =
+      web_contents()->GetController().GetEntryCount();
+  SendMessageToEmbedder(
+      new BrowserPluginMsg_DidNavigate(instance_id(), params));
+  RecordAction(UserMetricsAction("BrowserPlugin.Guest.DidNavigate"));
 }
 
 void BrowserPluginGuest::RenderViewGone(base::TerminationStatus status) {
   if (pending_input_event_reply_.get()) {
     IPC::Message* reply_message = pending_input_event_reply_.release();
     BrowserPluginHostMsg_HandleInputEvent::WriteReplyParams(reply_message,
                                                             false,
                                                             cursor_);
     SendMessageToEmbedder(reply_message);
   }
@@ skipping 18 matching lines @@
       break;
   }
 }
 
 void BrowserPluginGuest::SendMessageToEmbedder(IPC::Message* msg) {
   DCHECK(embedder_render_process_host());
   embedder_render_process_host()->Send(msg);
 }
 
 }  // namespace content