Update the TabContents::SavePage parameter to take FilePath instead of wstrin...

chrome/test/automation/automation_messages_internal.h

 // Copyright (c) 2006-2008 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.
 
 // Defines the IPC messages used by the automation interface.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
@@ skipping 640 matching lines @@
   // active browser, or it no longer exists. Returns 0 if no browser windows
   // exist.
   IPC_SYNC_MESSAGE_ROUTED0_1(AutomationMsg_LastActiveBrowserWindow, int)
 
   // This message notifies the AutomationProvider to save the page with given
   // handle. The first parameter is the handle to the tab resource. The second
   // parameter is the main HTML file name. The third parameter is the directory
   // for saving resources. The fourth parameter is the saving type: 0 for HTML
   // only; 1 for complete web page.
   // The return value contains a bool which is true on success.
-  IPC_SYNC_MESSAGE_ROUTED4_1(AutomationMsg_SavePage, int, std::wstring,
-                             std::wstring, int, bool)
+  IPC_SYNC_MESSAGE_ROUTED4_1(AutomationMsg_SavePage, int, FilePath, FilePath,
+                             int, bool)
 
   // This message requests the text currently being displayed in the
   // AutocompleteEdit.  The parameter is the handle to the AutocompleteEdit.
   // The return value is a string indicating the text in the AutocompleteEdit.
   IPC_SYNC_MESSAGE_ROUTED1_2(AutomationMsg_AutocompleteEditGetText,
                              int /* autocomplete edit handle */,
                              bool /* the requested autocomplete edit exists */,
                              std::wstring /* omnibox text */)
 
   // This message sets the text being displayed in the AutocompleteEdit.  The
@@ skipping 430 matching lines @@
 
   // Returns whether the window is maximized.
   // Request:
   //   int - the handle of the window
   // Response:
   //   bool - true if the window is maximized
   //   bool - true if query is successful
   IPC_SYNC_MESSAGE_ROUTED1_2(AutomationMsg_IsWindowMaximized, int, bool, bool)
 
 IPC_END_MESSAGES(Automation)