Fix incognito MD bullet regexp and bullet offset in RTL

Loosen the regexp for replacing <li> tags in strings so that
translatiosn that do not contain spaces before the <li> tags don't cause
crashes.

Also fix the bullet leading margin offest in RTL to prevent the bullet
from appearing cut off.

BUG=898056,898059

Change-Id: I357e2bc8425e926a328aa3af3b0660b5cadf04ea
Reviewed-on: https://chromium-review.googlesource.com/c/1296994Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Theresa <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601992}

chrome/android/java/src/org/chromium/chrome/browser/ntp/IncognitoNewTabPageViewMD.java

@@ -118,13 +118,13 @@ public class IncognitoNewTabPageViewMD extends IncognitoNewTabPageView {
         //   - Disambiguate the <li></li> spans for SpanApplier.
         //   - Remove leading whitespace (caused by formatting in the .grdp file)
         //   - Remove the trailing newline after the last bulletpoint.
-        text = text.replaceFirst(" +<li>([^<]*)</li>", "<li1>$1</li1>");
-        text = text.replaceFirst(" +<li>([^<]*)</li>", "<li2>$1</li2>");
-        text = text.replaceFirst(" +<li>([^<]*)</li>\n", "<li3>$1</li3>");
+        text = text.replaceFirst(" *<li>([^<]*)</li>", "<li1>$1</li1>");
+        text = text.replaceFirst(" *<li>([^<]*)</li>", "<li2>$1</li2>");
+        text = text.replaceFirst(" *<li>([^<]*)</li>\n", "<li3>$1</li3>");
 
         // Remove the <ul></ul> tags which serve no purpose here, including the whitespace around
         // them.
-        text = text.replaceAll(" +</?ul>\\n?", "");
+        text = text.replaceAll(" *</?ul>\\n?", "");
 
         view.setText(SpanApplier.applySpans(text,
                 new SpanApplier.SpanInfo("<em>", "</em>",

ui/android/java/res/values-ldrtl/dimens.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2018 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.
+-->
+<resources>
+    <dimen name="chrome_bullet_leading_offset">-1dp</dimen>
+</resources>