Add endpoint URL for BinaryUploadService

Now that the necessary tests have been added, we can safely add the new
endpoint URL.

Fixed: 1020434
Change-Id: Ib1b3073a1368d9e794104a4e8df5449cc3c4ef4e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1927571
Commit-Queue: Daniel Rubery <drubery@chromium.org>
Reviewed-by: Roger Tawa <rogerta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719235}

chrome/browser/safe_browsing/cloud_content_scanning/binary_upload_service.cc

@@ -34,9 +34,8 @@ namespace {
 
 const int kScanningTimeoutSeconds = 5 * 60;  // 5 minutes
 
-// TODO(crbug/1020434): Once we have an endpoint for uploads, place the URL
-// here.
-const char kSbBinaryUploadUrl[] = "";
+const char kSbBinaryUploadUrl[] =
+    "https://safebrowsing.google.com/safebrowsing/uploads/scan";
 
 policy::DMToken* GetTestingDMTokenStorage() {
   static policy::DMToken dm_token =