Disable failing WebView layout tests.

TBR=timvolodine@chromium.org

Bug: 998478
Change-Id: Ib7b24f28474773be6cfa6b0dc3e9f1c3a8497be3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1768343Reviewed-by: Rayan Kanso <rayankans@chromium.org>
Commit-Queue: Rayan Kanso <rayankans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#691112}

android_webview/tools/system_webview_shell/layout_tests/src/org/chromium/webview_shell/test/WebViewLayoutTest.java

@@ -15,6 +15,7 @@ import junit.framework.ComparisonFailure;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -147,6 +148,7 @@ public class WebViewLayoutTest {
 
     @Test
     @MediumTest
+    @Ignore("http://crbug.com/998478")
     public void testWebViewExcludedInterfaces() throws Exception {
         ensureJsTestCopied();
         loadUrlWebViewAsync("file://" + PATH_BLINK_PREFIX
@@ -193,6 +195,7 @@ public class WebViewLayoutTest {
 
     @Test
     @MediumTest
+    @Ignore("http://crbug.com/998478")
     public void testWebViewIncludedStableInterfaces() throws Exception {
         ensureJsTestCopied();
         loadUrlWebViewAsync("file://" + PATH_BLINK_PREFIX