4 files changed, 18 insertions, 0 deletions
diff --git a/chrome_frame/chrome_active_document.cc b/chrome_frame/chrome_active_document.cc
index 2e3c43f..1f7515d 100644
--- a/chrome_frame/chrome_active_document.cc
+++ b/chrome_frame/chrome_active_document.cc
@@ -790,3 +790,16 @@ HRESULT ChromeActiveDocument::SetPageFontSize(const GUID* cmd_group_guid,
   return S_OK;
 }
 
+void ChromeActiveDocument::OnGoToHistoryEntryOffset(int tab_handle,
+                                                    int offset) {
+  DLOG(INFO) << "GoToHistoryEntryOffset " << offset;
+  ScopedComPtr<IBrowserService> browser_service;
+  DoQueryService(SID_SShellBrowser, m_spClientSite, browser_service.Receive());
+  if (browser_service) {
+    ScopedComPtr<ITravelLog> travel_log;
+    browser_service->GetTravelLog(travel_log.Receive());
+    if (travel_log) {
+      travel_log->Travel(browser_service, offset);
+    }
+  }
+}
diff --git a/chrome_frame/chrome_active_document.h b/chrome_frame/chrome_active_document.h
index ee2c850..072bc00 100644
--- a/chrome_frame/chrome_active_document.h
+++ b/chrome_frame/chrome_active_document.h
@@ -218,6 +218,7 @@ END_EXEC_COMMAND_MAP()
                          int open_disposition);
 
   virtual void OnLoad(int tab_handle, const GURL& url);
+  virtual void OnGoToHistoryEntryOffset(int tab_handle, int offset);
 
   // A helper method that updates our internal navigation state
   // as well as IE's navigation state (viz Title and current URL).
diff --git a/chrome_frame/chrome_frame_delegate.cc b/chrome_frame/chrome_frame_delegate.cc
index 9a1069b..396d7a9 100644
--- a/chrome_frame/chrome_frame_delegate.cc
+++ b/chrome_frame/chrome_frame_delegate.cc
@@ -24,6 +24,7 @@ bool ChromeFrameDelegateImpl::IsTabMessage(const IPC::Message& message,
     IPC_MESSAGE_HANDLER_GENERIC(AutomationMsg_RequestEnd, )
     IPC_MESSAGE_HANDLER_GENERIC(AutomationMsg_SetCookieAsync, )
     IPC_MESSAGE_HANDLER_GENERIC(AutomationMsg_AttachExternalTab, )
+    IPC_MESSAGE_HANDLER_GENERIC(AutomationMsg_RequestGoToHistoryEntryOffset, )
     IPC_MESSAGE_UNHANDLED(is_tab_message = false);
   IPC_END_MESSAGE_MAP()
 
@@ -63,5 +64,7 @@ void ChromeFrameDelegateImpl::OnMessageReceived(const IPC::Message& msg) {
     IPC_MESSAGE_HANDLER(AutomationMsg_RequestEnd, OnRequestEnd)
     IPC_MESSAGE_HANDLER(AutomationMsg_SetCookieAsync, OnSetCookieAsync)
     IPC_MESSAGE_HANDLER(AutomationMsg_AttachExternalTab, OnAttachExternalTab)
+    IPC_MESSAGE_HANDLER(AutomationMsg_RequestGoToHistoryEntryOffset,
+        OnGoToHistoryEntryOffset)
   IPC_END_MESSAGE_MAP()
 }
diff --git a/chrome_frame/chrome_frame_delegate.h b/chrome_frame/chrome_frame_delegate.h
index ebde626..2c8acd9 100644
--- a/chrome_frame/chrome_frame_delegate.h
+++ b/chrome_frame/chrome_frame_delegate.h
@@ -91,6 +91,7 @@ class ChromeFrameDelegateImpl : public ChromeFrameDelegate {
                                 const std::string& cookie) {}
   virtual void OnAttachExternalTab(int tab_handle, intptr_t cookie,
                                    int disposition) {}
+  virtual void OnGoToHistoryEntryOffset(int tab_handle, int offset) {}
 };
 
 #endif  // CHROME_FRAME_CHROME_FRAME_DELEGATE_H_