# Disables translation and removes the "Translate to" context menu when --translate-script-url flag is not set
--- a/chrome/browser/renderer_context_menu/render_view_context_menu.cc
+++ b/chrome/browser/renderer_context_menu/render_view_context_menu.cc
@@ -180,6 +180,7 @@
 #include "components/supervised_user/core/browser/supervised_user_preferences.h"
 #include "components/supervised_user/core/browser/supervised_user_service.h"
 #include "components/supervised_user/core/browser/supervised_user_url_filter.h"
+#include "components/translate/core/common/translate_switches.h"
 #include "components/translate/core/browser/translate_download_manager.h"
 #include "components/translate/core/browser/translate_manager.h"
 #include "components/translate/core/browser/translate_prefs.h"
@@ -2271,6 +2272,7 @@ void RenderViewContextMenu::AppendPageIt
   }
 
   if (CanTranslate(/*menu_logging=*/true)) {
+   if (base::CommandLine::ForCurrentProcess()->HasSwitch(translate::switches::kTranslateScriptURL))
     AppendTranslateItem();
   }
 }
--- a/components/translate/core/browser/translate_language_list.cc
+++ b/components/translate/core/browser/translate_language_list.cc
@@ -12,6 +12,7 @@
 #include <string_view>
 
 #include "base/check.h"
+#include "base/command_line.h"
 #include "base/debug/dump_without_crashing.h"
 #include "base/functional/bind.h"
 #include "base/json/json_reader.h"
@@ -26,6 +27,7 @@
 #include "components/translate/core/browser/translate_event_details.h"
 #include "components/translate/core/browser/translate_url_fetcher.h"
 #include "components/translate/core/browser/translate_url_util.h"
+#include "components/translate/core/common/translate_switches.h"
 #include "components/translate/core/common/translate_util.h"
 #include "net/base/url_util.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -393,6 +395,9 @@ GURL TranslateLanguageList::TranslateLan
 }
 
 void TranslateLanguageList::RequestLanguageList() {
+  const base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess();
+  if (!command_line.HasSwitch(translate::switches::kTranslateScriptURL))
+    return;
   // If resource requests are not allowed, we'll get a callback when they are.
   if (!resource_requests_allowed_) {
     request_pending_ = true;
--- a/components/translate/core/browser/translate_manager.cc
+++ b/components/translate/core/browser/translate_manager.cc
@@ -829,8 +829,9 @@ void TranslateManager::FilterIsTranslate
         TriggerDecision::kDisabledOffline);
   }
 
-  if (!ignore_missing_key_for_testing_ &&
-      !::google_apis::HasAPIKeyConfigured()) {
+  const base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess();
+  if (!command_line.HasSwitch(translate::switches::kTranslateScriptURL) ||
+      (!ignore_missing_key_for_testing_ && !::google_apis::HasAPIKeyConfigured())) {
     // Without an API key, translate won't work, so don't offer to translate in
     // the first place. Leave kOfferTranslateEnabled on, though, because that
     // settings syncs and we don't want to turn off translate everywhere else.
--- a/components/translate/core/browser/translate_ranker_impl.cc
+++ b/components/translate/core/browser/translate_ranker_impl.cc
@@ -152,12 +152,9 @@ TranslateRankerImpl::TranslateRankerImpl
                                          ukm::UkmRecorder* ukm_recorder)
     : ukm_recorder_(ukm_recorder),
       is_uma_logging_enabled_(false),
-      is_query_enabled_(base::FeatureList::IsEnabled(kTranslateRankerQuery)),
-      is_enforcement_enabled_(
-          base::FeatureList::IsEnabled(kTranslateRankerEnforcement)),
-      is_previous_language_matches_override_enabled_(
-          base::FeatureList::IsEnabled(
-              translate::kTranslateRankerPreviousLanguageMatchesOverride)) {
+      is_query_enabled_(false),
+      is_enforcement_enabled_(false),
+      is_previous_language_matches_override_enabled_(false) {
   if (is_query_enabled_ || is_enforcement_enabled_) {
     model_loader_ = std::make_unique<assist_ranker::RankerModelLoaderImpl>(
         base::BindRepeating(&ValidateModel),
@@ -231,6 +228,8 @@ bool TranslateRankerImpl::ShouldOfferTra
   // (or become False).
   const bool kDefaultResponse = true;
 
+  return kDefaultResponse;
+
   translate_event->set_ranker_request_timestamp_sec(
       (base::TimeTicks::Now() - base::TimeTicks()).InSeconds());
   translate_event->set_ranker_version(GetModelVersion());
--- a/components/translate/core/browser/translate_script.cc
+++ b/components/translate/core/browser/translate_script.cc
@@ -146,8 +146,13 @@ void TranslateScript::OnScriptFetchCompl
                         server_params.c_str());
 
     GURL security_origin = translate::GetTranslateSecurityOrigin();
-    base::StringAppendF(&data_, "var securityOrigin = '%s';\n",
-                        security_origin.spec().c_str());
+    const base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess();
+    if (command_line.HasSwitch(translate::switches::kTranslateScriptURL)) {
+      base::StringAppendF(&data_, "var securityOrigin = '%s';\n",
+                          security_origin.spec().c_str());
+    } else {
+      base::StringAppendF(&data_, "var securityOrigin = '';\n");
+    }
 
     // Load embedded translate.js.
     data_.append(ui::ResourceBundle::GetSharedInstance().LoadDataResourceString(