Allow CrowdDeny update checks over HTTP.

Integrity of the check is still guaranteed by CUP.
The check will no longer be confidential of the check.

Bug: 1057341
Change-Id: I0b3f31a5797c24294dc8f9a782bddf2d98d3dc84
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2081238Reviewed-by: Sorin Jianu <sorin@chromium.org>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Commit-Queue: Balazs Engedy <engedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745761}

chrome/browser/component_updater/crowd_deny_component_installer.cc

@@ -55,7 +55,7 @@ bool CrowdDenyComponentInstallerPolicy::VerifyInstallation(
 }
 
 bool CrowdDenyComponentInstallerPolicy::RequiresNetworkEncryption() const {
-  return true;
+  return false;
 }
 
 update_client::CrxInstaller::Result