Control distillability with command-line flag

chrome/renderer/chrome_content_renderer_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/chrome_content_renderer_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 51 matching lines @@
 #include "chrome/renderer/tts_dispatcher.h"
 #include "chrome/renderer/worker_content_settings_client_proxy.h"
 #include "components/autofill/content/renderer/autofill_agent.h"
 #include "components/autofill/content/renderer/password_autofill_agent.h"
 #include "components/autofill/content/renderer/password_generation_agent.h"
 #include "components/content_settings/core/common/content_settings_pattern.h"
 #include "components/contextual_search/renderer/overlay_js_render_frame_observer.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
 #include "components/dom_distiller/content/renderer/distillability_agent.h"
 #include "components/dom_distiller/content/renderer/distiller_js_render_frame_observer.h"
+#include "components/dom_distiller/core/dom_distiller_switches.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/error_page/common/localized_error.h"
 #include "components/network_hints/renderer/prescient_networking_dispatcher.h"
 #include "components/password_manager/content/renderer/credential_manager_client.h"
 #include "components/pdf/renderer/pepper_pdf_host.h"
 #include "components/plugins/renderer/mobile_youtube_plugin.h"
 #include "components/signin/core/common/profile_management_switches.h"
 #include "components/startup_metric_utils/common/startup_metric.mojom.h"
 #include "components/subresource_filter/content/renderer/ruleset_dealer.h"
 #include "components/subresource_filter/content/renderer/subresource_filter_agent.h"
@@ skipping 421 matching lines @@
     if (prerender::PrerenderHelper::IsPrerendering(
             render_frame->GetRenderView()->GetMainRenderFrame())) {
       new prerender::PrerenderHelper(render_frame);
     }
   }
 
   // Set up a mojo service to test if this page is a distiller page.
   new dom_distiller::DistillerJsRenderFrameObserver(
       render_frame, chrome::ISOLATED_WORLD_ID_CHROME_INTERNAL);
 
-  // Create DistillabilityAgent to send distillability updates to
-  // DistillabilityDriver in the browser process.
-  new dom_distiller::DistillabilityAgent(render_frame);
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(switches::kEnableDistillabilityService)) {
+    // Create DistillabilityAgent to send distillability updates to
+    // DistillabilityDriver in the browser process.
+    new dom_distiller::DistillabilityAgent(render_frame);
+  }
 
   // Set up a mojo service to test if this page is a contextual search page.
   new contextual_search::OverlayJsRenderFrameObserver(render_frame);
 
   PasswordAutofillAgent* password_autofill_agent =
       new PasswordAutofillAgent(render_frame);
   PasswordGenerationAgent* password_generation_agent =
       new PasswordGenerationAgent(render_frame, password_autofill_agent);
   new AutofillAgent(render_frame, password_autofill_agent,
                     password_generation_agent);
@@ skipping 953 matching lines @@
 
   url::Replacements<char> r;
   r.SetPath(path.c_str(), url::Component(0, path.length()));
 
   if (result == internal::NUM_PLUGIN_ERROR)
     result = invalid_url ? internal::SUCCESS_PARAMS_REWRITE : internal::SUCCESS;
 
   RecordYouTubeRewriteUMA(result);
   return corrected_url.ReplaceComponents(r);
 }