Activate kClearCrossSiteCrossBrowsingContextGroupWindowName flag

build/patches/Remove-window-name-on-cross-origin-navigation.patch

@@ -7,9 +7,24 @@ See also: https://trac.webkit.org/changeset/209076/webkit
 Original License: GPL-2.0-or-later - https://spdx.org/licenses/GPL-2.0-or-later.html
 License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
 ---
+ content/public/common/content_features.cc                 | 4 ++--
  third_party/blink/renderer/core/loader/document_loader.cc | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
+ 2 files changed, 4 insertions(+), 3 deletions(-)
 
+diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
+--- a/content/public/common/content_features.cc
++++ b/content/public/common/content_features.cc
+@@ -175,8 +175,8 @@ BASE_FEATURE(kCdmStorageDatabaseMigration,
+ // Clear the window.name property for the top-level cross-site navigations that
+ // swap BrowsingContextGroups(BrowsingInstances).
+ BASE_FEATURE(kClearCrossSiteCrossBrowsingContextGroupWindowName,
+-             "ClearCrossSiteCrossBrowsingContextGroupWindowName",
+-             base::FEATURE_DISABLED_BY_DEFAULT);
++             "ClearCrossSiteCrossBrowsingContextGroupWindowName", // enabled
++             base::FEATURE_ENABLED_BY_DEFAULT);                   // by default
+ 
+ BASE_FEATURE(kCompositeBGColorAnimation,
+              "CompositeBGColorAnimation",
 diff --git a/third_party/blink/renderer/core/loader/document_loader.cc b/third_party/blink/renderer/core/loader/document_loader.cc
 --- a/third_party/blink/renderer/core/loader/document_loader.cc
 +++ b/third_party/blink/renderer/core/loader/document_loader.cc