[webui][ntp] Re-enable NewTabPageLogoTest.All test suite

NewTabPageLogoTest.All is a suite of JS tests and was disabled because
the "receiving resize message resizes doodle" test was flaky. This CL
re-enables NewTabPageLogoTest.All and disables "receiving resize message
resizes doodle" to at least keep coverage of the non-flaky JS tests.

Bug: 1065812
Change-Id: Id17b039be73cbb81f4e4f370267b5c92a7402052
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2134403
Commit-Queue: Tibor Goldschwendt <tiborg@chromium.org>
Commit-Queue: Esmael Elmoslimany <aee@chromium.org>
Auto-Submit: Tibor Goldschwendt <tiborg@chromium.org>
Reviewed-by: Esmael Elmoslimany <aee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#756167}

chrome/test/data/webui/new_tab_page/logo_test.js

@@ -107,7 +107,8 @@ suite('NewTabPageLogoTest', () => {
     assertStyle(logo.$.multiColoredLogo, 'display', 'none');
   });
 
-  test('receiving resize message resizes doodle', async () => {
+  // Disabled for flakiness, see https://crbug.com/1065812.
+  test.skip('receiving resize message resizes doodle', async () => {
     // Arrange.
     const logo = await createLogo({content: {url: {url: 'https://foo.com'}}});
     const transitionend = eventToPromise('transitionend', logo.$.iframe);

chrome/test/data/webui/new_tab_page/new_tab_page_browsertest.js

@@ -156,7 +156,6 @@ var NewTabPageLogoTest = class extends NewTabPageBrowserTest {
   }
 };
 
-// Disabled for flakiness, see https://crbug.com/1065812
-TEST_F('NewTabPageLogoTest', 'DISABLED_All', function() {
+TEST_F('NewTabPageLogoTest', 'All', function() {
   mocha.run();
 });