Add strings needed for the VR feedback infobar

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- android_chrome_strings.grd contains strings for Chrome for Android.
 
 FAQ:
   - How do I add, change, or remove a string?
       Just update this file.
   - Translations will happen automatically??
       Yes, indeed. Just add your string before the branch point and
       make the description good.
@@ skipping 2933 matching lines @@
       <message name="IDS_KEYBOARD_SHORTCUT_TAB_GROUP_HEADER" desc="A text label that appears above a list of shortcuts that are related to the tab window. This group is part of several groups of keyboard shortcuts all shown in a dialog.">
         Tab and window shortcuts
       </message>
       <message name="IDS_KEYBOARD_SHORTCUT_CHROME_FEATURE_GROUP_HEADER" desc="A text label that appears above a list of shortcuts that are related to the Chrome app features. This group is part of several groups of keyboard shortcuts all shown in a dialog.">
         Google Chrome feature shortcuts
       </message>
       <message name="IDS_KEYBOARD_SHORTCUT_WEBPAGE_GROUP_HEADER" desc="A text label that appears above a list of shortcuts that are related to manipulation of the current tab window. This group is part of several groups of keyboard shortcuts all shown in a dialog.">
         Webpage shortcuts
       </message>
 
+       <!-- Chrome VR feedback infobar -->
+      <message name="IDS_VR_SHELL_FEEDBACK_INFOBAR_DESCRIPTION" desc="Description for infobar prompting the user for feedback on their VR browsing experience.">
+        Help improve the VR experience in Chrome
+      </message>
+      <message name="IDS_VR_SHELL_FEEDBACK_INFOBAR_FEEDBACK_BUTTON" desc="Brief button text asking the user to provide feedback in the VR feedback infobar.">
+        Provide feedback
+      </message>
+
       <!-- VR services check infobar -->
       <message name="IDS_VR_SERVICES_CHECK_INFOBAR_INSTALL_TEXT" desc="Text to be displayed in the VR Services check infobar. When a WebVR page is loaded if the VR services that are needed to display WebVR don't exist an infobar will be shown to the user prompting them to install VR services.">
         To view virtual reality content, install Google VR Services
       </message>
       <message name="IDS_VR_SERVICES_CHECK_INFOBAR_UPDATE_TEXT" desc="Text to be displayed in the VR Services check infobar. When a WebVR page is loaded if the VR services that are needed to display WebVR are out of date an infobar will be shown to the user prompting them to update VR services.">
         To view virtual reality content, update Google VR Services
       </message>
       <message name="IDS_VR_SERVICES_CHECK_INFOBAR_INSTALL_BUTTON" desc="Text to be displayed in the VR Services check infobar confirm button for installing.">
         Install
       </message>
@@ skipping 39 matching lines @@
         Remove and recreate this shortcut
       </message>
 
       <!-- Chrome Home -->
       <message name="IDS_BOTTOM_SHEET_HELP_BUBBLE_MESSAGE" desc="Text displayed in a help bubble above the bottom navigation sheet prompting users to pull the sheet up to see their bookmarks and other content.">
         Pull up to see bookmarks and more
       </message>
     </messages>
   </release>
 </grit>