Backout c7c68c4389d6 (bug 1125713) for gaia app startup regression r=me

dom/browser-element/BrowserElementChildPreload.js

@@ -113,8 +113,7 @@ BrowserElementChild.prototype = {
             .addProgressListener(this._progressListener,
                                  Ci.nsIWebProgress.NOTIFY_LOCATION |
                                  Ci.nsIWebProgress.NOTIFY_SECURITY |
-                                 Ci.nsIWebProgress.NOTIFY_STATE_WINDOW |
-                                 Ci.nsIWebProgress.NOTIFY_PROGRESS);
+                                 Ci.nsIWebProgress.NOTIFY_STATE_WINDOW);
 
     docShell.QueryInterface(Ci.nsIWebNavigation)
             .sessionHistory = Cc["@mozilla.org/browser/shistory;1"]
@@ -1378,12 +1377,8 @@ BrowserElementChild.prototype = {
     },
 
     onStatusChange: function(webProgress, request, status, message) {},
-
     onProgressChange: function(webProgress, request, curSelfProgress,
-                               maxSelfProgress, curTotalProgress, maxTotalProgress) {
-      sendAsyncMsg('loadprogresschanged', { curTotalProgress: curTotalProgress,
-                                            maxTotalProgress: maxTotalProgress });
-    },
+                               maxSelfProgress, curTotalProgress, maxTotalProgress) {},
   },
 
   // Expose the message manager for WebApps and others.

dom/browser-element/BrowserElementParent.js

@@ -181,7 +181,6 @@ BrowserElementParent.prototype = {
       "hello": this._recvHello,
       "loadstart": this._fireProfiledEventFromMsg,
       "loadend": this._fireProfiledEventFromMsg,
-      "loadprogresschanged": this._fireEventFromMsg,
       "close": this._fireEventFromMsg,
       "error": this._fireEventFromMsg,
       "firstpaint": this._fireProfiledEventFromMsg,

dom/browser-element/mochitest/browserElement_LoadEvents.js

@@ -13,8 +13,7 @@ function runTest() {
   // Load emptypage1 into the iframe, wait for that to finish loading, then
   // call runTest2.
   //
-  // This should trigger loadstart, locationchange, loadprogresschanged  and
-  // loadend events.
+  // This should trigger loadstart, locationchange, and loadend events.
 
   var seenLoadEnd = false;
   var seenLoadStart = false;
@@ -75,7 +74,6 @@ function runTest2() {
   var seenLoadStart = false;
   var seenLoadEnd = false;
   var seenLocationChange = false;
-  var seenLoadProgressChanged = false;
 
   // Add this event listener to the document; the events should bubble.
   document.addEventListener('mozbrowserloadstart', function(e) {
@@ -105,14 +103,6 @@ function runTest2() {
     is(e.detail.backgroundColor, 'transparent', 'Expected background color reported')
   });
 
-  iframe.addEventListener('mozbrowserloadprogresschanged', function(e) {
-    ok(e.isTrusted, 'Event should be trusted.');
-    seenLoadProgressChanged = true;
-    ok(seenLoadStart, 'Load end after load start.');
-    ok(seenLocationChange, 'Load end after location change.');
-    ok(!seenLoadEnd, 'Load end after load progress.');
-  });
-
   iframe.src = browserElementTestHelpers.emptyPage2;
 
   function waitForAllCallbacks() {