Fixing a crash when loading themes on Win8.

chrome/browser/safe_browsing/signature_util_win.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/safe_browsing/signature_util.h"
 
 #include <windows.h>
 #include <softpub.h>
 #include <wintrust.h>
 
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "chrome/common/safe_browsing/csd.pb.h"
 
 #pragma comment(lib, "wintrust.lib")
 
 namespace safe_browsing {
 
 SignatureUtil::SignatureUtil() {}
 
 SignatureUtil::~SignatureUtil() {}
 
 void SignatureUtil::CheckSignature(
     const FilePath& file_path,
     ClientDownloadRequest_SignatureInfo* signature_info) {
   VLOG(2) << "Checking signature for " << file_path.value();
 
-  WINTRUST_FILE_INFO file_info;
+  WINTRUST_FILE_INFO file_info = {0};
   file_info.cbStruct = sizeof(file_info);
   file_info.pcwszFilePath = file_path.value().c_str();
   file_info.hFile = NULL;
   file_info.pgKnownSubject = NULL;
 
-  WINTRUST_DATA wintrust_data;
+  WINTRUST_DATA wintrust_data = {0};
   wintrust_data.cbStruct = sizeof(wintrust_data);
   wintrust_data.pPolicyCallbackData = NULL;
   wintrust_data.pSIPClientData = NULL;
   wintrust_data.dwUIChoice = WTD_UI_NONE;
   wintrust_data.fdwRevocationChecks = WTD_REVOKE_NONE;
   wintrust_data.dwUnionChoice = WTD_CHOICE_FILE;
   wintrust_data.pFile = &file_info;
   wintrust_data.dwStateAction = WTD_STATEACTION_VERIFY;
   wintrust_data.hWVTStateData = NULL;
   wintrust_data.pwszURLReference = NULL;
@@ skipping 37 matching lines @@
     }
 
     // Free the provider data.
     wintrust_data.dwStateAction = WTD_STATEACTION_CLOSE;
     WinVerifyTrust(static_cast<HWND>(INVALID_HANDLE_VALUE),
                    &policy_guid, &wintrust_data);
   }
 }
 
 }  // namespace safe_browsing