[Sharing] Add QR Code Generation Flag.

Bug: 1064990
Change-Id: Ia865919514d57b4e7611bdfe7fa5828035b9ec26
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2122750
Reviewed-by: Mark Cogan <[email protected]>
Commit-Queue: Sebastien Lalancette <[email protected]>
Cr-Commit-Position: refs/heads/master@{#753992}
diff --git a/ios/chrome/browser/ui/ui_feature_flags.cc b/ios/chrome/browser/ui/ui_feature_flags.cc
index 47a744a16..367e5645 100644
--- a/ios/chrome/browser/ui/ui_feature_flags.cc
+++ b/ios/chrome/browser/ui/ui_feature_flags.cc
@@ -39,3 +39,6 @@
 
 const base::Feature kNewSigninArchitecture{"NewSigninArchitecture",
                                            base::FEATURE_DISABLED_BY_DEFAULT};
+
+const base::Feature kQRCodeGeneration{"QRCodeGeneration",
+                                      base::FEATURE_DISABLED_BY_DEFAULT};