Change --top-document-isolation command line flag to use base::Feature API.
This CL prepares TDI for future Finch experiments.
Moreover, as a side-effect, this CL has the following additional impact:
1. Instead of using the old --top-document-isolation command line switch, one
has to now specify --enable-features=top-document-isolation
2. Tests that want to enable TDI mode should do so via
base::test::ScopedFeatureList.
3. Users who have previously opted into TDI mode via chrome://flags will
need to opt-in again (e.g. by visiting
chrome://flags/#enable-top-document-isolation URL).
BUG=595987
Review-Url: https://codereview.chromium.org/2865263006
Cr-Commit-Position: refs/heads/master@{#471492}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 0af672d..4db353e 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1856,7 +1856,7 @@
{"enable-top-document-isolation",
flag_descriptions::kTopDocumentIsolationName,
flag_descriptions::kTopDocumentIsolationDescription, kOsAll,
- SINGLE_VALUE_TYPE(switches::kTopDocumentIsolation)},
+ FEATURE_VALUE_TYPE(features::kTopDocumentIsolation)},
{"enable-use-zoom-for-dsf", flag_descriptions::kEnableUseZoomForDsfName,
flag_descriptions::kEnableUseZoomForDsfDescription, kOsAll,
MULTI_VALUE_TYPE(kEnableUseZoomForDSFChoices)},
