Added screen options menu.

remoting/webapp/_locales/en/messages.json

 {
   "ACCESS_CODE": {
     "message": "Access code",
     "description": "Label for the access code entry box. This is where the client user enters the code that permits access to the host."
   },
   "ACCESS_CODE_TIMER": {
     "message": "This access code will expire in $timeout$",
     "description": "Text displayed when the access code is due to time out within 30 seconds.",
     "placeholders": {
       "timeout": {
@@ skipping 164 matching lines @@
     "description": "Error displayed when the service returns a 503 error. Such errors are usually temporary, and resolve themselves in about 30 seconds."
   },
   "ERROR_UNEXPECTED": {
     "message": "An unexpected error occurred. Please report this problem to the developers.",
     "description": "Error displayed in situations where things go wrong in ways not anticipated by the developers. There is typically no user-workaround to suggest, other than reporting the error so that we can investigate further."
   },
   "FOOTER_WAITING": {
     "message": "waiting for connection\u2026",
     "description": "Footer text displayed at the host after an access code has been generated, but before a client connects."
   },
+  "FULL_SCREEN": {
+    "message": "Full screen",
+    "description": "Menu option for toggle full-screen mode. Equivalent to using the Wrench menu to do the same thing."
+  },
   "HELP": {
     "message": "Help",
     "description": "Help link, displayed in the top-left (assuming ltr layout) corner of the main screen. Clicking this takes the user to our FAQ."
   },
   "HOME_ACCESS_BUTTON": {
     "message": "Access",
     "description": "Clicking this button starts the desktop access process."
   },
   "HOME_ACCESS_DESCRIPTION": {
     "message": "See and control a shared computer.",
@@ skipping 84 matching lines @@
   "OFFLINE": {
     "message": "$hostname$ (offline)",
     "description": "Modified version of the host name shown for hosts that are not currently accessible.",
     "placeholders": {
       "hostname": {
         "content": "$1",
         "example": "My Linux desktop"
       }
     }
   },
+  "ORIGINAL_SIZE": {
+    "message": "Original size",
+    "description": "Menu option for disabling shrink-to-fit. When clicked, the remote desktop will be displayed at 1:1 scale."
+  },
   "OUTGOING_CONNECTIONS": {
     "message": "From this computer",
     "description": "In the connection history dialog, clicking this button shows only recent connections from this computer."
   },
   "PIN": {
     "message": "PIN",
     "description": "Label for the PIN entry box."
   },
   "PIN_MESSAGE": {
     "message": "Please enter your PIN for $hostname$.",
@@ skipping 14 matching lines @@
     "description": "The product name. Displayed in various Chromium pages, including the New Tab page, and displayed prominently on the app's main page."
   },
   "RECONNECT": {
     "message": "Reconnect",
     "description": "Label for button to reconnect to the previous Me2Me host. This button appears on the 'session-finished' page."
   },
   "RETRY": {
     "message": "Retry",
     "description": "Label for button to retry connecting to a Me2Me host, after failing to connect to that host. This button appears on the 'session-finished' page."
   },
+  "SCREEN_OPTIONS": {
+    "message": "Screen options",
+    "description": "Tool-bar button used to access the Full-screen and shrink-to-fit features ('screen' in this context refers to the fact that the options are related to how the remote screen is displayed)."
+  },
+  "SHRINK_TO_FIT": {
+    "message": "Shrink to fit",
+    "description": "Menu option for enabling shrink-to-fit. When clicked, the remote desktop will be scaled down so that it fits in the browser window."
+  },
   "SIGN_OUT_BUTTON": {
     "message": "Sign out",
     "description": "Sign out button, visible if the user has authenticated. Clicking this clears authentication credentials and returns the web-app to the initial 'unauthenticated' state."
   },
   "STOP_SHARING_BUTTON": {
     "message": "Stop Sharing",
     "description": "Label for the 'stop sharing' button on the host-side. Clicking this button disconnects the client."
   },
   "TIME_HEADER": {
     "message": "Time",
     "description": "Column header in the connection history table showing the time and date of a connection."
   },
   "TOOLTIP_CONNECT": {
     "message": "Connect to $hostname$",
     "description": "The tool-tip shown when the user hovers over an on-line host. Clicking the host will initiate a connection to it.",
     "placeholders": {
       "hostname": {
         "content": "$1",
         "example": "My Linux desktop"
       }
     }
   },
   "TOOLTIP_DELETE": {
     "message": "Disable remote connections to this computer",
     "description": "The tool-tip shown when the user hovers over the 'delete host' button. Clicking this button removes the host from the list and disables connections to it."
   },
-  "TOOLTIP_SCALING": {
-    "message": "Scale to fit",
-    "description": "The tool-tip shown when the user hovers over the scale to fit button. Clicking this button toggles between scaling down the remote desktop to fit it inside the Chromium browser window and displaying it at 1:1 scale."
-  },
   "TOOLTIP_RENAME": {
     "message": "Edit computer name",
     "description": "The tool-tip shown when the user hovers over the 'rename host' button. Clicking this button allows the host name to be edited in-place."
   },
   "WARNING_NAT_DISABLED": {
     "message": "NOTE: Policy settings permit connections only between computers within your network.",
     "description": "Message displayed at the bottom of the host screen if local policy dictates that NAT traversal is disabled, meaning that connections outside the local network will not work."
   }
 }