Add --enable-slimming-paint command line flag

content/renderer/render_view_impl.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 "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 929 matching lines @@
   settings->setDOMPasteAllowed(prefs.dom_paste_enabled);
   settings->setShrinksStandaloneImagesToFit(
       prefs.shrinks_standalone_images_to_fit);
   settings->setUsesEncodingDetector(prefs.uses_universal_detector);
   settings->setTextAreasAreResizable(prefs.text_areas_are_resizable);
   settings->setAllowScriptsToCloseWindows(prefs.allow_scripts_to_close_windows);
   settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled);
   settings->setJavaScriptCanAccessClipboard(
       prefs.javascript_can_access_clipboard);
   WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
+  WebRuntimeFeatures::enableSlimmingPaint(prefs.slimming_paint_enabled);
   settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
   settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
   settings->setLocalStorageEnabled(prefs.local_storage_enabled);
   settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled);
   WebRuntimeFeatures::enableDatabase(prefs.databases_enabled);
   settings->setOfflineWebApplicationCacheEnabled(
       prefs.application_cache_enabled);
   settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled);
   settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled);
   settings->setCookieEnabled(prefs.cookie_enabled);
@@ skipping 3252 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content