Fixing a crash when loading themes on Win8.

chrome/browser/safe_browsing/signature_util_win.cc

Index: chrome/browser/safe_browsing/signature_util_win.cc
diff --git a/chrome/browser/safe_browsing/signature_util_win.cc b/chrome/browser/safe_browsing/signature_util_win.cc
index 55683e3e06863b606f50ac98047ff34b86fc8ac7..6f9073d32201d504fcb9090e11afa7206ca1199c 100644
--- a/chrome/browser/safe_browsing/signature_util_win.cc
+++ b/chrome/browser/safe_browsing/signature_util_win.cc
@@ -25,13 +25,13 @@ void SignatureUtil::CheckSignature(
     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;