Disable BlockFrameRenavigations2.

First step of go/finch-killswitch#process

(cherry picked from commit 944965f)

Bug: 1467532
Change-Id: Ibb3cbe382f842c8327a4984e05c10706671d8561
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4715381
Commit-Queue: Yaron Friedman <yfriedman@chromium.org>
Reviewed-by: Fred Mello <fredmello@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1174926}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4734131
Commit-Queue: Krishna Govind <govind@chromium.org>
Auto-Submit: Yaron Friedman <yfriedman@chromium.org>
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Commit-Queue: Michael Thiessen <mthiesse@chromium.org>
Cr-Commit-Position: refs/branch-heads/5790@{#1907}
Cr-Branched-From: 1d71a33-refs/heads/main@{#1148114}

components/external_intents/android/external_intents_features.cc

@@ -31,7 +31,7 @@ BASE_FEATURE(kExternalNavigationDebugLogs,
 
 BASE_FEATURE(kBlockFrameRenavigations,
              "BlockFrameRenavigations2",
-             base::FEATURE_ENABLED_BY_DEFAULT);
+             base::FEATURE_DISABLED_BY_DEFAULT);
 
 BASE_FEATURE(kDoNotRequireSpecializedCCTHandler,
              "DoNotRequireSpecializedCCTHandler",