Add strings to be used on the new version of Incognito NTP.

- Title
- Subtitle
- Disclaimer
- Two lists of bulletpoints

Note that each list of bulletpoints is represented as one string to ensure
translation consistency; the wording used for the title of the list can
affect on the declension of individual bullet points.

The UI where the strings will be used is not a part of this CL.

BUG=693525

Review-Url: https://codereview.chromium.org/2703733004
Cr-Commit-Position: refs/heads/master@{#453285}

components/new_or_sad_tab_strings.grdp

@@ -65,4 +65,23 @@
         Undo
       </message>
 
+      <!-- Incognito Tab redesign strings -->
+      <!-- TODO(msramek): Merge with the above section once this is fully launched. -->
+
+      <message name="IDS_NEW_TAB_OTR_TITLE" desc="Title of the Incognito new tab page." formatter_data="android_java">
+        You’ve gone incognito
+      </message>
+      <message name="IDS_NEW_TAB_OTR_SUBTITLE" desc="Subtitle of the Incognito new tab page, explaining to the user that the Incognito mode hides their browsing activity from other people using the device." formatter_data="android_java">
+        Now you can browse in private, and other people who use this device won’t see your activity.
+      </message>
+      <message name="IDS_NEW_TAB_OTR_DISCLAIMER" desc="A disclaimer on the Incognito new tab page, explaining to the user that downloaded files and added bookmarks will be persisted even after the Incognito session is closed." formatter_data="android_java">
+        Downloaded files and bookmarks will be kept.
+      </message>
+      <message name="IDS_NEW_TAB_OTR_NOT_SAVED_BULLET_POINTS" desc="Bullet points listing data that are not saved in the Incognito mode. The '#' character in this text represents a bullet point. Please keep it unchanged and do not add additional spaces around it. The text between the pair of '|' characters will be highlighted." formatter_data="android_java">
+        This information |won’t be saved|:#Your browsing history#Your searches#Cookie data
+      </message>
+      <message name="IDS_NEW_TAB_OTR_VISIBLE" desc="Bullet points listing entities that might be able to see the user's Incognito activity. The '#' character in this text represents a bullet point. Please keep it unchanged and do not add additional spaces around it. The text between the pair of '|' characters will be highlighted." formatter_data="android_java">
+        Your activity |might still be visible| to:#Websites you visit#Your employer#Your internet service provider
+      </message>
+
 </grit-part>