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-expected.txt

Index: third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g-expected.txt
diff --git a/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-conn-type-expected.txt b/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g-expected.txt
similarity index 79%
copy from third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-conn-type-expected.txt
copy to third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g-expected.txt
index e413da4147de87f77a7861e3c0ffdc5f76289ea5..5f356f4adb08cbeeca5a40f40c10571fe42f3aab 100644
--- a/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-conn-type-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g-expected.txt
@@ -1,11 +1,11 @@
 main frame - didStartProvisionalLoadForFrame
 main frame - didCommitLoadForFrame
-CONSOLE WARNING: line 18: A Parser-blocking, cross-origin script, http://localhost:8000/loading/resources/js-loaded.js?conn-type, is invoked via document.write. This may be blocked by the browser if the device has poor network connectivity. See https://www.chromestatus.com/feature/5718547946799104 for more details.
-CONSOLE WARNING: line 18: A Parser-blocking, cross-origin script, http://localhost:8000/loading/resources/js-loaded.js?conn-type, is invoked via document.write. This may be blocked by the browser if the device has poor network connectivity. See https://www.chromestatus.com/feature/5718547946799104 for more details.
+CONSOLE WARNING: line 19: A Parser-blocking, cross-origin script, http://localhost:8000/loading/resources/js-loaded.js?conn-type, is invoked via document.write. This may be blocked by the browser if the device has poor network connectivity. See https://www.chromestatus.com/feature/5718547946799104 for more details.
+CONSOLE WARNING: line 19: A Parser-blocking, cross-origin script, http://localhost:8000/loading/resources/js-loaded.js?conn-type, is invoked via document.write. This may be blocked by the browser if the device has poor network connectivity. See https://www.chromestatus.com/feature/5718547946799104 for more details.
 main frame - didFinishDocumentLoadForFrame
 main frame - didHandleOnloadEventsForFrame
 main frame - didFinishLoadForFrame
 This is a testharness.js-based test.
-PASS Document.written scripts are not blocked in a fast connection 
+PASS Document.written scripts are blocked when effectively 2G 
 Harness: the test ran to completion.