From: csagan5 <32685696+csagan5@users.noreply.github.com>
Date: Sat, 22 Aug 2020 12:46:20 +0200
Subject: Disable text fragments by default

Revert "[Text Fragment] Unflag fragment directive removal."

Original License: BSD-3-Clause - https://spdx.org/licenses/BSD-3-Clause.html
License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
---
 chrome/browser/ui/prefs/prefs_tab_helper.cc               | 2 +-
 content/child/runtime_features.cc                         | 2 ++
 .../about_flags_cc/Disable-text-fragments-by-default.inc  | 8 ++++++++
 .../features_cc/Disable-text-fragments-by-default.inc     | 4 ++++
 .../features_h/Disable-text-fragments-by-default.inc      | 1 +
 third_party/blink/renderer/core/dom/document.cc           | 5 +++++
 .../renderer/platform/runtime_enabled_features.json5      | 5 ++---
 7 files changed, 23 insertions(+), 4 deletions(-)
 create mode 100644 cromite_flags/chrome/browser/about_flags_cc/Disable-text-fragments-by-default.inc
 create mode 100644 cromite_flags/third_party/blink/common/features_cc/Disable-text-fragments-by-default.inc
 create mode 100644 cromite_flags/third_party/blink/common/features_h/Disable-text-fragments-by-default.inc

diff --git a/chrome/browser/ui/prefs/prefs_tab_helper.cc b/chrome/browser/ui/prefs/prefs_tab_helper.cc
--- a/chrome/browser/ui/prefs/prefs_tab_helper.cc
+++ b/chrome/browser/ui/prefs/prefs_tab_helper.cc
@@ -385,7 +385,7 @@ void PrefsTabHelper::RegisterProfilePrefs(
       prefs::kEnableReferrers,
       !base::FeatureList::IsEnabled(features::kNoReferrers));
   registry->RegisterBooleanPref(prefs::kEnableEncryptedMedia, true);
-  registry->RegisterBooleanPref(prefs::kScrollToTextFragmentEnabled, true);
+  registry->RegisterBooleanPref(prefs::kScrollToTextFragmentEnabled, false);
 #if BUILDFLAG(IS_ANDROID)
   registry->RegisterDoublePref(browser_ui::prefs::kWebKitFontScaleFactor, 1.0);
   registry->RegisterIntegerPref(prefs::kAccessibilityTextSizeContrastFactor, 0);
diff --git a/content/child/runtime_features.cc b/content/child/runtime_features.cc
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -258,6 +258,8 @@ void SetRuntimeFeaturesFromChromiumFeatures() {
           {wf::EnableTouchDragAndDrop, raw_ref(features::kTouchDragAndDrop)},
           {wf::EnableTouchDragAndContextMenu,
            raw_ref(features::kTouchDragAndContextMenu)},
+          {wf::EnableTextFragmentIdentifiers,
+           raw_ref(blink::features::kTextFragmentAnchor)},
           {wf::EnableWebAuthenticationAmbient,
            raw_ref(device::kWebAuthnAmbientSignin)},
           {wf::EnableWebAuthenticationImmediateGet,
diff --git a/cromite_flags/chrome/browser/about_flags_cc/Disable-text-fragments-by-default.inc b/cromite_flags/chrome/browser/about_flags_cc/Disable-text-fragments-by-default.inc
new file mode 100644
--- /dev/null
+++ b/cromite_flags/chrome/browser/about_flags_cc/Disable-text-fragments-by-default.inc
@@ -0,0 +1,8 @@
+#ifdef FLAG_SECTION
+
+    {"enable-text-fragment-anchor",
+     "Enable Text Fragment Anchor.",
+     "Enables scrolling to text specified in URL's fragment.", kOsAll,
+     FEATURE_VALUE_TYPE(blink::features::kTextFragmentAnchor)},
+
+#endif
diff --git a/cromite_flags/third_party/blink/common/features_cc/Disable-text-fragments-by-default.inc b/cromite_flags/third_party/blink/common/features_cc/Disable-text-fragments-by-default.inc
new file mode 100644
--- /dev/null
+++ b/cromite_flags/third_party/blink/common/features_cc/Disable-text-fragments-by-default.inc
@@ -0,0 +1,4 @@
+// Enable text snippets in URL fragments. https://crbug.com/919204.
+CROMITE_FEATURE(kTextFragmentAnchor,
+                "TextFragmentAnchor",
+                base::FEATURE_DISABLED_BY_DEFAULT);
diff --git a/cromite_flags/third_party/blink/common/features_h/Disable-text-fragments-by-default.inc b/cromite_flags/third_party/blink/common/features_h/Disable-text-fragments-by-default.inc
new file mode 100644
--- /dev/null
+++ b/cromite_flags/third_party/blink/common/features_h/Disable-text-fragments-by-default.inc
@@ -0,0 +1 @@
+BLINK_COMMON_EXPORT BASE_DECLARE_FEATURE(kTextFragmentAnchor);
diff --git a/third_party/blink/renderer/core/dom/document.cc b/third_party/blink/renderer/core/dom/document.cc
--- a/third_party/blink/renderer/core/dom/document.cc
+++ b/third_party/blink/renderer/core/dom/document.cc
@@ -4972,9 +4972,14 @@ void Document::SetURL(const KURL& url) {
   TRACE_EVENT("blink", "Document::SetURL", perfetto::Flow::FromPointer(this),
               "url", new_url.GetString().Utf8());
 
+  // If text fragment identifiers are enabled, we strip the fragment directive
+  // from the URL fragment.
+  // E.g. "#id:~:text=a" --> "#id"
+  if (RuntimeEnabledFeatures::TextFragmentIdentifiersEnabled(domWindow())) {
   // Strip the fragment directive from the URL fragment. E.g. "#id:~:text=a"
   // --> "#id". See https://github.com/WICG/scroll-to-text-fragment.
   new_url = fragment_directive_->ConsumeFragmentDirective(new_url);
+  }
 
   url_ = new_url;
   UpdateBaseURL();
diff --git a/third_party/blink/renderer/platform/runtime_enabled_features.json5 b/third_party/blink/renderer/platform/runtime_enabled_features.json5
--- a/third_party/blink/renderer/platform/runtime_enabled_features.json5
+++ b/third_party/blink/renderer/platform/runtime_enabled_features.json5
@@ -5749,10 +5749,9 @@
     },
     {
       name: "TextFragmentIdentifiers",
-      origin_trial_feature_name: "TextFragmentIdentifiers",
       public: true,
-      status: "stable",
-      base_feature: "TextFragmentAnchor",
+      status: "test",
+      origin_trial_feature_name: "TextFragmentIdentifiers"
     },
     {
       name: "TextFragmentTapOpensContextMenu",
--