Refactor Vr activity into ChromeTabbedActivity.

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 208 matching lines @@
       </message>
       <message name="IDS_MANAGED_BY_YOUR_PARENT" desc="Popup message when the user clicks a UI element that has been disabled by his/her parent.">
         Managed by your parent
       </message>
       <message name="IDS_PREFS_SECTION_BASICS" desc='Title of "Basics" section of preferences. [CHAR-LIMIT=32]'>
         Basics
       </message>
       <message name="IDS_PREFS_SECTION_ADVANCED" desc='Title of "Advanced" section of preferences. [CHAR-LIMIT=32]'>
         Advanced
       </message>
+      <message name="IDS_ENTER_VR" desc="Menu item for entering VR. [CHAR-LIMIT=27]">
+        &#128083;&#128083;&#128083; Enter VR &#128083;&#128083;&#128083;

[Ted C, 2016/09/13 16:34:55]

Just synced and this is crashing when I attempt to open the menu on my KK phone.

W/dalvikvm( 9297): JNI WARNING: NewStringUTF input is not valid Modified UTF-8:
illegal start byte 0xf0
W/dalvikvm( 9297):              string: '👓👓👓 Enter VR 👓👓👓'
W/dalvikvm( 9297):              in
Landroid/content/res/StringBlock;.nativeGetString:(II)Ljava/lang/String;
(NewStringUTF)

I/dalvikvm( 9297):   at android.content.res.StringBlock.nativeGetString(Native
Method)
I/dalvikvm( 9297):   at android.content.res.StringBlock.get(StringBlock.java:82)
I/dalvikvm( 9297):   at
android.content.res.AssetManager.getPooledString(AssetManager.java:275)
I/dalvikvm( 9297):   at
android.content.res.TypedArray.loadStringValueAt(TypedArray.java:727)
I/dalvikvm( 9297):   at
android.content.res.TypedArray.getText(TypedArray.java:97)
I/dalvikvm( 9297):   at
android.view.MenuInflater$MenuState.readItem(MenuInflater.java:348)
I/dalvikvm( 9297):   at
android.view.MenuInflater.parseMenu(MenuInflater.java:160)
I/dalvikvm( 9297):   at android.view.MenuInflater.inflate(MenuInflater.java:110)
I/dalvikvm( 9297):   at android.widget.PopupMenu.inflate(PopupMenu.java:159)
I/dalvikvm( 9297):   at
org.chromium.chrome.browser.appmenu.AppMenuHandler.showAppMenu(AppMenuHandler.java:104)

[mthiesse, 2016/09/13 16:39:44]

https://codereview.chromium.org/2337103004/

+      </message>
 
       <!-- Sign-in preference -->
       <message name="IDS_SIGN_IN_TO_CHROME" desc="Title for the button to sign in to Chrome using one's Google account. [CHAR-LIMIT=27]">
         Sign in to Chrome
       </message>
       <message name="IDS_SIGN_IN_TO_CHROME_SUMMARY" desc="Summary for the button to sign in to Chrome, explaining benefits of signing in.">
         Sign in to get your bookmarks, history, passwords, and other settings on all your devices
       </message>
       <message name="IDS_SIGN_IN_GOOGLE_ACTIVITY_CONTROLS" desc="Title of Google activity controls preference in signed in accouts settings screen">
         Google Activity Controls
@@ skipping 2367 matching lines @@
 
       <message name="IDS_INSTANT_APPS_INFO_BAR_LABEL" desc="The title of the infobar that asks the user if they want to use an Instant App. It's the name of the app followed by the word 'Instant', e.g. ExampleApp - Instant.">
         <ph name="APP_NAME">%1$s<ex>ExampleApp</ex></ph> - <ph name="STYLE_BEGIN">&lt;style&gt;</ph>Instant<ph name="STYLE_END">&lt;/style&gt;</ph>
       </message>
       <message name="IDS_INSTANT_APPS_OPEN_IN_APP" desc="Button label for the user action that will open an Instant App. [CHAR LIMIT=20]">
         Open in app
       </message>
     </messages>
   </release>
 </grit>