FlagsUI: update heading and warning text

Visual: http://screen/ihJM5xoT5BL

Bug: 1009457
Change-Id: Ide05aa692968a6956a8e364a722d8e705a9193fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1829571Reviewed-by: Hector Carmona <hcarmona@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Yann Dago <ydago@chromium.org>
Cr-Commit-Position: refs/heads/master@{#703751}

chrome/browser/ui/webui/flags_ui.cc

@@ -128,6 +128,7 @@ void FlagsUI::AddStrings(content::WebUIDataSource* source) {
   source->AddLocalizedString("enabled", IDS_FLAGS_UI_ENABLED_FEATURE);
   source->AddLocalizedString("experiment-enabled",
                              IDS_FLAGS_UI_EXPERIMENT_ENABLED);
+  source->AddLocalizedString("heading", IDS_FLAGS_UI_TITLE);
   source->AddLocalizedString("no-results", IDS_FLAGS_UI_NO_RESULTS);
   source->AddLocalizedString("not-available-platform",
                              IDS_FLAGS_UI_NOT_AVAILABLE_ON_PLATFORM);
@@ -161,11 +162,11 @@ void FlagsDeprecatedUI::AddStrings(content::WebUIDataSource* source) {
                              IDS_DEPRECATED_FEATURES_ENABLED_FEATURE);
   source->AddLocalizedString("experiment-enabled",
                              IDS_DEPRECATED_UI_EXPERIMENT_ENABLED);
+  source->AddLocalizedString("heading", IDS_DEPRECATED_FEATURES_HEADING);
   source->AddLocalizedString("no-results", IDS_DEPRECATED_FEATURES_NO_RESULTS);
   source->AddLocalizedString("not-available-platform",
                              IDS_DEPRECATED_FEATURES_NOT_AVAILABLE_ON_PLATFORM);
-  source->AddLocalizedString("page-warning",
-                             IDS_DEPRECATED_FEATURES_PAGE_WARNING);
+  source->AddString("page-warning", std::string());
   source->AddLocalizedString("page-warning-explanation",
                              IDS_DEPRECATED_FEATURES_PAGE_WARNING_EXPLANATION);
   source->AddLocalizedString("relaunch", IDS_DEPRECATED_FEATURES_RELAUNCH);

components/flags_strings.grdp

@@ -111,12 +111,11 @@
   <message name="IDS_DEPRECATED_FEATURES_TITLE" desc="The page title for the about:enterprise-settings page.">
     Deprecated Features
   </message>
-  <message name="IDS_DEPRECATED_FEATURES_PAGE_WARNING" desc="A warning stating that the features of the page are experimental.">
-    Warning: Deprecated features ahead!
+  <message name="IDS_DEPRECATED_FEATURES_HEADING" translateable="false" desc="The page heading for the about:flags page.">
+    Unsupported features
   </message>
   <message name="IDS_DEPRECATED_FEATURES_PAGE_WARNING_EXPLANATION" desc="Warning to users that features are deprecated. Shown prominently at the top of the page.">
-    By enabling these features, you will be using deprecated features
-    that will disappear in future versions.
+    These features are disabled by default. They will not be available in future versions of Chrome.
   </message>
   <message name="IDS_DEPRECATED_FEATURES_NO_RESULTS" desc="Message shown when searching and no results were found.">
     No matching features

components/flags_ui/resources/flags.html

@@ -45,7 +45,7 @@
 <div id="body-container" style="visibility:hidden">
   <div id="flagsTemplate">
     <div class="flex-container">
-      <div class="flex"><h1 class="section-header-title">$i18n{title}</h1></div>
+      <div class="flex"><h1 class="section-header-title">$i18n{heading}</h1></div>
       <span id="version" class="flex">$i18n{version}</span>
     </div>
     <div class="blurb-container">

ios/chrome/browser/ui/webui/flags_ui.cc

@@ -218,6 +218,7 @@ void FlagsUI::AddFlagsIOSStrings(web::WebUIIOSDataSource* source) {
   source->AddLocalizedString("enabled", IDS_FLAGS_UI_ENABLED_FEATURE);
   source->AddLocalizedString("experiment-enabled",
                              IDS_FLAGS_UI_EXPERIMENT_ENABLED);
+  source->AddLocalizedString("heading", IDS_FLAGS_UI_TITLE);
   source->AddLocalizedString("no-results", IDS_FLAGS_UI_NO_RESULTS);
   source->AddLocalizedString("not-available-platform",
                              IDS_FLAGS_UI_NOT_AVAILABLE_ON_PLATFORM);