Remove implicit HANDLE conversions from chrome.

chrome/utility/importer/ie_importer_win.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 "chrome/utility/importer/ie_importer_win.h"
 
 #include <ole2.h>
 #include <intshcut.h>
 #include <shlobj.h>
 #include <urlhist.h>
@@ skipping 54 matching lines @@
 
 // Gets the creation time of the given file or directory.
 base::Time GetFileCreationTime(const base::string16& file) {
   base::Time creation_time;
   base::win::ScopedHandle file_handle(
       CreateFile(file.c_str(), GENERIC_READ,
                  FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
                  NULL, OPEN_EXISTING,
                  FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS, NULL));
   FILETIME creation_filetime;
-  if (GetFileTime(file_handle, &creation_filetime, NULL, NULL))
+  if (!file_handle.IsValid())
+    return creation_time;
+  if (GetFileTime(file_handle.Get(), &creation_filetime, NULL, NULL))
     creation_time = base::Time::FromFileTime(creation_filetime);
   return creation_time;
 }
 
 // Safely read an object of type T from a raw sequence of bytes.
 template<typename T>
 bool BinaryRead(T* data, size_t offset, const std::vector<uint8>& blob) {
   if (offset + sizeof(T) > blob.size())
     return false;
   memcpy(data, &blob[offset], sizeof(T));
@@ skipping 786 matching lines @@
   static int version = -1;
   if (version < 0) {
     wchar_t buffer[128];
     DWORD buffer_length = sizeof(buffer);
     base::win::RegKey reg_key(HKEY_LOCAL_MACHINE, kIEVersionKey, KEY_READ);
     LONG result = reg_key.ReadValue(L"Version", buffer, &buffer_length, NULL);
     version = ((result == ERROR_SUCCESS)? _wtoi(buffer) : 0);
   }
   return version;
 }