Add Blink setting to block doc.written scripts on 2g-like networks

third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g.html

Index: third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-conn-type.html b/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g.html
similarity index 67%
copy from third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-conn-type.html
copy to third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g.html
index e5ec3b8f074668594ffa14a053c3e42423fb0893..d0fc50a001c514dc039854ab9b9fd5ee6eee7458 100644
--- a/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-conn-type.html
+++ b/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g.html
@@ -5,21 +5,22 @@
     var src = 'http://localhost:8000/loading/resources/js-loaded.js?conn-type';
     var jsLoaded = false;
     var loadSuccess = false;
-    if (window.internals) {
-        internals.settings.setDisallowFetchForDocWrittenScriptsInMainFrameOnSlowConnections(true);
+    if (window.internals && window.testRunner) {
+        internals.settings.setDisallowFetchForDocWrittenScriptsInMainFrameIfEffectively2G(true);
         internals.setNetworkConnectionInfoOverride(true, 'cellular3g', 2.0);
         internals.evictAllResources();
-
+        window.testRunner.setEffectiveConnectionType('TypeSlow2G');
         window.addEventListener('beforeunload', function() {
             internals.clearNetworkConnectionInfoOverride();
-            internals.settings.setDisallowFetchForDocWrittenScriptsInMainFrameOnSlowConnections(false);
+            window.testRunner.setEffectiveConnectionType('TypeUnknown');
+            internals.settings.setDisallowFetchForDocWrittenScriptsInMainFrameIfEffectively2G(false);
         }, false);
     }
     document.write('<scr' + 'ipt src="' + src + '" onload="loadSuccess=true"></scr' + 'ipt>');
 </script>
 <script>
     test(function () {
-        assert_true(jsLoaded);
-        assert_true(loadSuccess);
-    }, "Document.written scripts are not blocked in a fast connection");
+        assert_false(jsLoaded);
+        assert_false(loadSuccess);
+    }, "Document.written scripts are blocked when effectively 2G");
 </script>