Allow fallback from https to http for component update checks.

chrome/browser/component_updater/caps_installer_win.cc

Index: chrome/browser/component_updater/caps_installer_win.cc
diff --git a/chrome/browser/component_updater/caps_installer_win.cc b/chrome/browser/component_updater/caps_installer_win.cc
index 78942ba175832a0b848f5ef1a0bfe8b311a69b89..cd4cd9bc6bdccb02033832024bcde6313b902683 100644
--- a/chrome/browser/component_updater/caps_installer_win.cc
+++ b/chrome/browser/component_updater/caps_installer_win.cc
@@ -7,6 +7,7 @@
 #include <stdint.h>
 #include <string>
 #include <utility>
+#include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ -78,6 +79,8 @@ class CAPSInstallerTraits : public ComponentInstallerTraits {
 
   bool CanAutoUpdate() const override { return true; }
 
+  bool RequiresNetworkEncryption() const override { return false; }
+
   bool OnCustomInstall(const base::DictionaryValue& manifest,
                        const base::FilePath& install_dir) override {
     return true;