No longer observe listener addition/removal in ChromeVox unload.

This simplifies the unload codepath for ChromeVox.
- remove event listener observer
- remove loaded ChromeVox profile tracking
- send events to ChromeVox for load using lazy dispatch

TEST=Manual. Verify load speaks "ChromeVox, spoken feedback enabled" the first time only.
BUG=339775,332461

Review URL: https://codereview.chromium.org/151093003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248439 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 2 insertions, 2 deletions

diff --git a/chrome/third_party/chromevox/chromeVoxChromeBackgroundScript.js b/chrome/third_party/chromevox/chromeVoxChromeBackgroundScript.js
index 6cb97b1..ce852369 100644
--- a/chrome/third_party/chromevox/chromeVoxChromeBackgroundScript.js
+++ b/chrome/third_party/chromevox/chromeVoxChromeBackgroundScript.js
@@ -1579,5 +1579,5 @@ break;case cvox.TypingEcho.NONE:c=cvox.ChromeVox.msgs.getMsg("none_echo")}c&&thi
 function(){b.postMessage({message:"TTS_CALLBACK",id:a.endCallbackId})});try{this.onTtsMessage(a)}catch(f){console.log(f)}break;case "EARCON":this.onEarconMessage(a);break;case "BRAILLE":try{this.onBrailleMessage(a)}catch(g){console.log(g)}}},this))};cvox.ChromeVoxBackground.prototype.checkVersionNumber=function(){this.isIncognito_()||(this.localStorageVersion=localStorage.versionString,this.showNotesIfNewVersion())};cvox.ChromeVoxBackground.prototype.displayReleaseNotes=function(){chrome.tabs.create({url:"http://chromevox.com/release_notes.html"})};
 cvox.ChromeVoxBackground.prototype.showNotesIfNewVersion=function(){var a=chrome.extension.getURL("manifest.json"),b=new XMLHttpRequest,c=this;b.onreadystatechange=function(){if(4==b.readyState){var a=JSON.parse(b.responseText);console.log("Version: "+a.version);var e=c.localStorageVersion!=a.version;-1!=navigator.userAgent.indexOf("CrOS")&&void 0==c.localStorageVersion&&(e=!1);e&&c.displayReleaseNotes();this.localStorageVersion=localStorage.versionString=a.version}};b.open("GET",a);b.send()};
 cvox.ChromeVoxBackground.prototype.readPrefs=function(){var a=this.prefs.getPrefs();cvox.ChromeVoxEditableTextBase.useIBeamCursor="true"==a.useIBeamCursor;cvox.ChromeVox.isActive="true"==a.active||cvox.ChromeVox.isChromeOS;cvox.ChromeVox.isStickyOn="true"==a.sticky};cvox.ChromeVoxBackground.prototype.isIncognito_=function(){var a=!1;chrome.tabs.getCurrent(function(b){a=b?b.incognito:!0});return a};
-cvox.ChromeVoxBackground.prototype.onLoadStateChanged=function(a,b){a?b&&(cvox.ChromeVox.tts.speak(cvox.ChromeVox.msgs.getMsg("chromevox_intro"),1,{doNotInterrupt:!0}),cvox.ChromeVox.braille.write(cvox.NavBraille.fromText(cvox.ChromeVox.msgs.getMsg("intro_brl")))):(cvox.ChromeVox.tts.stop(),cvox.ChromeVox.braille.write(cvox.NavBraille.fromText("")),window.setTimeout(function(){chrome.accessibilityPrivate.onChromeVoxLoadStateChanged.destroy_()},0))};var background$$inline_14=new cvox.ChromeVoxBackground;
-background$$inline_14.init();window.speak=goog.bind(background$$inline_14.tts.speak,background$$inline_14.tts);window.prefs=background$$inline_14.prefs;window.braille=cvox.ChromeVox.braille;
+cvox.ChromeVoxBackground.prototype.onLoadStateChanged=function(a,b){a?b&&(cvox.ChromeVox.tts.speak(cvox.ChromeVox.msgs.getMsg("chromevox_intro"),1,{doNotInterrupt:!0}),cvox.ChromeVox.braille.write(cvox.NavBraille.fromText(cvox.ChromeVox.msgs.getMsg("intro_brl")))):(cvox.ChromeVox.tts.stop(),cvox.ChromeVox.braille.write(cvox.NavBraille.fromText("")),window.setTimeout(function(){chrome.accessibilityPrivate.onChromeVoxLoadStateChanged.removeListener(cvox.ChromeVoxBackground.prototype.onLoadStateChanged)},
+0))};var background$$inline_14=new cvox.ChromeVoxBackground;background$$inline_14.init();window.speak=goog.bind(background$$inline_14.tts.speak,background$$inline_14.tts);window.prefs=background$$inline_14.prefs;window.braille=cvox.ChromeVox.braille;