Allow fallback from https to http for component update checks.

chrome/browser/extensions/updater/chrome_update_client_config.cc

Index: chrome/browser/extensions/updater/chrome_update_client_config.cc
diff --git a/chrome/browser/extensions/updater/chrome_update_client_config.cc b/chrome/browser/extensions/updater/chrome_update_client_config.cc
index 9dcb208910edad3ab3f2fba3d05b9e1b6be3fa0c..4dfb696cf0366b1cc08c40ad06f4db4ecbe43d4a 100644
--- a/chrome/browser/extensions/updater/chrome_update_client_config.cc
+++ b/chrome/browser/extensions/updater/chrome_update_client_config.cc
@@ -13,11 +13,13 @@
 
 namespace extensions {
 
+// For privacy reasons, requires encryption of the component updater
+// communication with the update backend.
 ChromeUpdateClientConfig::ChromeUpdateClientConfig(
     content::BrowserContext* context)
     : impl_(base::CommandLine::ForCurrentProcess(),
-            context->GetRequestContext()) {
-}
+            context->GetRequestContext(),
+            true) {}
 
 int ChromeUpdateClientConfig::InitialDelay() const {
   return impl_.InitialDelay();