Add a settings button to Physical Web activity

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 129 matching lines @@
       </message>
       <message name="IDS_DELETE" desc="Label for a delete button. Used in multiple contexts. [CHAR-LIMIT=20]">
         Delete
       </message>
       <message name="IDS_REMOVE" desc="Label for a button to remove an item (e.g. a bookmark) from a list. [CHAR-LIMIT=20]">
         Remove
       </message>
       <message name="IDS_RESET" desc="Label for a button to reset information you are editing to a default.">
         Reset
       </message>
+      <message name="IDS_SETTINGS" desc="Label for a button to access relevant preferences.">
+        Reset

[mattreynolds, 2016/05/23 19:45:59]

Settings

We could also use IDS_MENU_PREFERENCES instead of adding a new string

+      </message>
       <message name="IDS_TITLE" desc="Text indicating the title of a button or a textfield. Ued in multiple contexts. [CHAR-LIMIT=32]">
         Title
       </message>
       <message name="IDS_TEXT_ON" desc="Text indicating that an option is turned on. [CHAR-LIMIT=20]">
         On
       </message>
       <message name="IDS_TEXT_OFF" desc="Text indicating that an option is turned off. [CHAR-LIMIT=20]">
         Off
       </message>
       <message name="IDS_LEARN_MORE" desc="Generic label for menu item to learn more about a feature. [CHAR-LIMIT=32]">
@@ skipping 2249 matching lines @@
       <!-- Migration strings -->
       <message name="IDS_TAB_SWITCHER_CALLOUT_HEADER" desc="Header for the Tab Switcher callout.">
         Quickly switch tabs
       </message>
       <message name="IDS_TAB_SWITCHER_CALLOUT_BODY" desc="Indicates that clicking the tab switcher button gives you quick access to your tabs.">
         Tap this button for quick access to your tabs.
       </message>
     </messages>
   </release>
 </grit>