Support running ChromeVox in uncompressed mode and compress ChromeVox next by default.

chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview The entry point for all ChromeVox2 related code for the
  * background page.
  */
 
 goog.provide('cvox2.Background');
@@ skipping 268 matching lines @@
         for (var eventType in this.listeners_) {
           this.current_.root.removeEventListener(
               eventType, this.listeners_[eventType], true);
         }
       }
       this.active_ = false;
     }
 
     chrome.tabs.query({active: true}, function(tabs) {
       if (opt_options.classic) {
-        cvox.ChromeVox.injectChromeVoxIntoTabs(tabs, true);
+        cvox.ChromeVox.injectChromeVoxIntoTabs(tabs);
       } else {
         tabs.forEach(function(tab) {
           this.disableClassicChromeVox_(tab.id);
         }.bind(this));
       }
     }.bind(this));
   }
 };
 
 /** @type {cvox2.Background} */
 cvox2.global.backgroundObj = new cvox2.Background();
 
 });  // goog.scope