Add full filename to sampled-download pings.

chrome/browser/safe_browsing/download_protection_service.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/browser/safe_browsing/download_protection_service.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 930 matching lines @@
 
     for (auto bin_itr : request.archived_binary()) {
       if (service_->IsHashManuallyBlacklisted(bin_itr.digests().sha256()))
         return true;
     }
     return false;
   }
 
   // Prepares URLs to be put into a ping message. Currently this just shortens
   // data: URIs, other URLs are included verbatim. If this is a sampled binary,
-  // we'll send a lite-ping which strips all PII.
+  // we'll send a light-ping which strips PII from the URL.
   std::string SanitizeUrl(const GURL& url) const {
     if (type_ == ClientDownloadRequest::SAMPLED_UNSUPPORTED_FILE)
       return url.GetOrigin().spec();
 
     std::string spec = url.spec();
     if (url.SchemeIs(url::kDataScheme)) {
       size_t comma_pos = spec.find(',');
       if (comma_pos != std::string::npos && comma_pos != spec.size() - 1) {
         std::string hash_value = crypto::SHA256HashString(spec);
         spec.erase(comma_pos + 1);
@@ skipping 53 matching lines @@
       resource->set_url(SanitizeUrl(tab_url_));
       DVLOG(2) << "tab url " << resource->url();
       resource->set_type(ClientDownloadRequest::TAB_URL);
       if (tab_referrer_url_.is_valid()) {
         resource->set_referrer(SanitizeUrl(tab_referrer_url_));
         DVLOG(2) << "tab referrer " << resource->referrer();
       }
     }
 
     request.set_user_initiated(item_->HasUserGesture());
-    if (type_ == ClientDownloadRequest::SAMPLED_UNSUPPORTED_FILE) {
-      request.set_file_basename(
-          base::FilePath(item_->GetTargetFilePath().Extension())
-              .AsUTF8Unsafe());
-    } else {
-      request.set_file_basename(
+    request.set_file_basename(
         item_->GetTargetFilePath().BaseName().AsUTF8Unsafe());
-    }
     request.set_download_type(type_);
 
     ReferrerChainData* referrer_chain_data =
       static_cast<ReferrerChainData*>(
           item_->GetUserData(kDownloadReferrerChainDataKey));
     if (referrer_chain_data &&
         !referrer_chain_data->GetReferrerChain()->empty()) {
       request.mutable_referrer_chain()->Swap(
           referrer_chain_data->GetReferrerChain());
     }
@@ skipping 953 matching lines @@
           out_request->mutable_referrer_chain());
   UMA_HISTOGRAM_COUNTS_100(
       "SafeBrowsing.ReferrerURLChainSize.PPAPIDownloadAttribution",
       out_request->referrer_chain_size());
   UMA_HISTOGRAM_ENUMERATION(
       "SafeBrowsing.ReferrerAttributionResult.PPAPIDownloadAttribution", result,
       SafeBrowsingNavigationObserverManager::ATTRIBUTION_FAILURE_TYPE_MAX);
 }
 
 }  // namespace safe_browsing