back out 5aa9b76448b5 (bug 960584) for bustage (it depends on fix that hasn't yet landed)

mobile/android/locales/en-US/chrome/webapp.properties

@@ -8,10 +8,6 @@ checkingForUpdatesMessage=Checking for updates to your apps
 noUpdatesTitle=No updates available
 noUpdatesMessage=There are no updates to your apps
 
-# LOCALIZATION NOTE (retrievingMessage): %1$S is the name of the app.
-retrievingTitle=Retrieving app…
-retrievingMessage=%1$S
-
 # LOCALIZATION NOTE (retrieveUpdateTitle): Semi-colon list of plural forms.
 # See: http://developer.mozilla.org/en/docs/Localization_and_Plurals
 # #1 is the number of updates.

mobile/android/modules/WebappManager.jsm

@@ -100,19 +100,6 @@ this.WebappManager = {
 
     let filePath;
 
-
-    let appName = aMessage.app.manifest ? aMessage.app.manifest.name
-                                        : aMessage.app.updateManifest.name;
-
-    let downloadingNotification = this._notify({
-      title: Strings.GetStringFromName("retrievingTitle"),
-      message: Strings.formatStringFromName("retrievingMessage", [appName], 1),
-      icon: "drawable://alert_download_animation",
-      // TODO: make this a determinate progress indicator once we can determine
-      // the sizes of the APKs and observe their progress - bug 970210.
-      progress: NaN,
-    });
-
     try {
       filePath = yield this._downloadApk(aMessage.app.manifestURL);
     } catch(ex) {
@@ -120,8 +107,6 @@ this.WebappManager = {
       aMessageManager.sendAsyncMessage("Webapps:Install:Return:KO", aMessage);
       debug("error downloading APK: " + ex);
       return;
-    } finally {
-      downloadingNotification.cancel();
     }
 
     Messaging.sendRequestForResult({
@@ -174,7 +159,6 @@ this.WebappManager = {
       }
     }
 
-
     // Trigger the download.
     worker.postMessage({ url: generatorUrl.spec, path: file.path });
 
@@ -536,7 +520,7 @@ this.WebappManager = {
       message: getFormattedPluralForm("retrievingUpdateMessage", [downloadingNames], aApps.length),
       icon: "drawable://alert_download_animation",
       // TODO: make this a determinate progress indicator once we can determine
-      // the sizes of the APKs and observe their progress - bug 970210.
+      // the sizes of the APKs and observe their progress.
       progress: NaN,
     });