Send safe browsing ThreatDetails to track download CTR when user tries to recover blocked downloads

chrome/browser/download/download_danger_prompt.cc

Index: chrome/browser/download/download_danger_prompt.cc
diff --git a/chrome/browser/download/download_danger_prompt.cc b/chrome/browser/download/download_danger_prompt.cc
index f581e42b6408ba8d18ccab4cf71b672b937b6a56..b44ecfb2b5acf0fe40521e7f918ca4ab648df209 100644
--- a/chrome/browser/download/download_danger_prompt.cc
+++ b/chrome/browser/download/download_danger_prompt.cc
@@ -6,19 +6,24 @@
 
 #include "base/bind.h"
 #include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/download/chrome_download_manager_delegate.h"
 #include "chrome/browser/download/download_stats.h"
 #include "chrome/browser/extensions/api/experience_sampling_private/experience_sampling.h"
+#include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/ui/tab_modal_confirm_dialog.h"
 #include "chrome/browser/ui/tab_modal_confirm_dialog_delegate.h"
+#include "chrome/common/safe_browsing/csd.pb.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
+#include "content/public/browser/browser_context.h"
 #include "content/public/browser/download_danger_type.h"
 #include "content/public/browser/download_item.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using extensions::ExperienceSamplingEvent;
+using safe_browsing::ClientSafeBrowsingReportRequest;
 
 namespace {
 
@@ -240,6 +245,11 @@ void DownloadDangerPromptImpl::RunDone(Action action) {
   OnDone done = done_;
   done_.Reset();
   if (download_ != NULL) {
+    if (!download_->GetURL().is_empty() &&
+        !download_->GetBrowserContext()->IsOffTheRecord()) {
+      SendSafeBrowsingDownloadRecoveryReport(
+          action == DownloadDangerPrompt::ACCEPT, download_->GetURL());
+    }
     download_->RemoveObserver(this);
     download_ = NULL;
   }
@@ -263,3 +273,23 @@ DownloadDangerPrompt* DownloadDangerPrompt::Create(
   return prompt;
 }
 #endif
+
+void DownloadDangerPrompt::SendSafeBrowsingDownloadRecoveryReport(
+    bool did_proceed,
+    const GURL& url) {
+  safe_browsing::SafeBrowsingService* sb_service =
+      g_browser_process->safe_browsing_service();
+  if (sb_service) {
+    ClientSafeBrowsingReportRequest report;
+    report.set_type(
+        ClientSafeBrowsingReportRequest::MALICIOUS_DOWNLOAD_RECOVERY);
+    report.set_url(url.spec());
+    report.set_did_proceed(did_proceed);
+
+    std::string serialized_report;
+    if (report.SerializeToString(&serialized_report))
+      sb_service->SendDownloadRecoveryReport(serialized_report);
+    else
+      DLOG(ERROR) << "Unable to serialize the threat report.";
+  }
+}