Disable Feedv2 build flag on canary

Bug: 1119406
Change-Id: Ib6e64db692a264036d48ca168f434cfe38f534b6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2412549
Commit-Queue: Dan H <harringtond@chromium.org>
Auto-Submit: Dan H <harringtond@chromium.org>
Reviewed-by: Justin DeWitt <dewittj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807154}

components/feed/features.gni

@@ -2,7 +2,11 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//chrome/android/channel.gni")
+
 declare_args() {
   enable_feed_in_chrome = is_android
-  enable_feed_v2 = is_android
+
+  # TODO(crbug.com/1119406): Temporarily disable on canary for testing.
+  enable_feed_v2 = is_android && android_channel != "canary"
 }