Various changes required to support ChromeVox Next to read Views and Windows.

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

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
index 27b173d0fe216eaed357c6d1c6b25a307dd96f7f..65d50b534af82e8506453239fb51244b62b86c7a 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
@@ -89,7 +89,9 @@ Background = function() {
     menuStart: this.onEventDefault,
     menuEnd: this.onEventDefault,
     loadComplete: this.onLoadComplete,
-    textSelectionChanged: this.onTextSelectionChanged
+    textChanged: this.onTextOrTextSelectionChanged,
+    textSelectionChanged: this.onTextOrTextSelectionChanged,
+    valueChanged: this.onEventDefault
   };
 
   // Register listeners for ...
@@ -98,9 +100,6 @@ Background = function() {
 
   // Tabs.
   chrome.tabs.onUpdated.addListener(this.onTabUpdated);
-
-  // Commands.
-  chrome.commands.onCommand.addListener(this.onGotCommand);
 };
 
 Background.prototype = {
@@ -244,6 +243,12 @@ Background.prototype = {
 
     var prevRange = this.currentRange_;
     this.currentRange_ = cursors.Range.fromNode(node);
+
+    // Don't process nodes inside of web content if ChromeVox Next is inactive.
+    if (node.root.role == chrome.automation.RoleType.rootWebArea &&
+        !this.active_)
+      return;
+
     new Output(this.currentRange_, prevRange, evt.type);
   },
 
@@ -266,7 +271,7 @@ Background.prototype = {
    * Provides all feedback once a text selection change event fires.
    * @param {Object} evt
    */
-  onTextSelectionChanged: function(evt) {
+  onTextOrTextSelectionChanged: function(evt) {
     if (!this.currentRange_)
       this.currentRange_ = cursors.Range.fromNode(evt.target);
 
@@ -287,6 +292,7 @@ Background.prototype = {
     }
 
     this.editableTextHandler.changed(textChangeEvent);
+    new Output(this.currentRange_, null, evt.type, {braille: true});
   },
 
   /**
@@ -323,9 +329,15 @@ Background.prototype = {
     }
 
     if (opt_options.next) {
+      if (!chrome.commands.onCommand.hasListener(this.onGotCommand))
+        chrome.commands.onCommand.addListener(this.onGotCommand);
+
       chrome.automation.getTree(this.onGotTree);
       this.active_ = true;
     } else {
+      if (chrome.commands.onCommand.hasListener(this.onGotCommand))
+        chrome.commands.onCommand.removeListener(this.onGotCommand);
+
       if (this.active_) {
         for (var eventType in this.listeners_) {
           this.currentRange_.getStart().getNode().root.removeEventListener(