Add Content-Type header to net::ReportSender reports

chrome/browser/safe_browsing/permission_reporter_unittest.cc

Index: chrome/browser/safe_browsing/permission_reporter_unittest.cc
diff --git a/chrome/browser/safe_browsing/permission_reporter_unittest.cc b/chrome/browser/safe_browsing/permission_reporter_unittest.cc
index 6f83885440d357c0aa0b85a3a0ac1a2cf96ede83..7a825cb4c2adacff16dc19305abca13eb7861cf8 100644
--- a/chrome/browser/safe_browsing/permission_reporter_unittest.cc
+++ b/chrome/browser/safe_browsing/permission_reporter_unittest.cc
@@ -118,6 +118,8 @@ TEST_F(PermissionReporterTest, SendReport) {
 
   EXPECT_EQ(GURL(kPermissionActionReportingUploadUrl),
             mock_report_sender_->latest_report_uri());
+  EXPECT_EQ("application/octet-stream",
+            mock_report_sender_->latest_content_type());
 }
 
 // Test that PermissionReporter::SendReport sends a serialized report string
@@ -153,6 +155,9 @@ TEST_F(PermissionReporterTest, SendReportWithFieldTrials) {
 
   permission_reporter_->SendReport(BuildDummyReportInfo());
 
+  EXPECT_EQ("application/octet-stream",
+            mock_report_sender_->latest_content_type());
+
   PermissionReport permission_report;
   ASSERT_TRUE(
       permission_report.ParseFromString(mock_report_sender_->latest_report()));