Backing out Bug 1518799 (changeset eace4709948c) because the target page is not yet available. a=backout

--HG--
extra : amend_source : b698a2524136b77dcfc0178bf89e41eefef3889c

browser/branding/nightly/pref/firefox-branding.js

@@ -2,7 +2,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-pref("startup.homepage_override_nightly.20190114", "https://www.mozilla.org/firefox/dedicated-profiles/");
 pref("startup.homepage_override_url", "https://www.mozilla.org/projects/firefox/%VERSION%/whatsnew/?oldversion=%OLD_VERSION%");
 pref("startup.homepage_welcome_url", "https://www.mozilla.org/projects/firefox/%VERSION%/firstrun/");
 pref("startup.homepage_welcome_url.additional", "");

browser/components/nsBrowserContentHandler.js

@@ -61,18 +61,10 @@ function resolveURIInternal(aCmdLine, aArgument) {
 
 var gFirstWindow = false;
 
-function getNormalizedDate() {
-  let pad = num => ("" + num).padStart(2, "0");
-
-  let date = new Date();
-  return `${date.getFullYear()}${pad(date.getMonth() + 1)}${pad(date.getDate())}`;
-}
-
 const OVERRIDE_NONE        = 0;
 const OVERRIDE_NEW_PROFILE = 1;
 const OVERRIDE_NEW_MSTONE  = 2;
 const OVERRIDE_NEW_BUILD_ID = 3;
-const OVERRIDE_NIGHTLY     = 4;
 /**
  * Determines whether a home page override is needed.
  * Returns:
@@ -84,14 +76,6 @@ const OVERRIDE_NIGHTLY     = 4;
  *  OVERRIDE_NONE otherwise.
  */
 function needHomepageOverride(prefb) {
-  if (AppConstants.NIGHTLY_BUILD && !Cu.isInAutomation) {
-    let pref = `startup.homepage_override_nightly.${getNormalizedDate()}`;
-    let url = Services.prefs.getCharPref(pref, "");
-    if (url) {
-      return OVERRIDE_NIGHTLY;
-    }
-  }
-
   var savedmstone = prefb.getCharPref("browser.startup.homepage_override.mstone", "");
 
   if (savedmstone == "ignore")
@@ -560,12 +544,6 @@ nsBrowserContentHandler.prototype = {
               UpdatePing.handleUpdateSuccess(old_mstone, old_buildId);
             }
             break;
-          case OVERRIDE_NIGHTLY:
-            // Opens a page on the first startup on a particular day.
-            let pref = `startup.homepage_override_nightly.${getNormalizedDate()}`;
-            overridePage = Services.prefs.getCharPref(pref);
-            Services.prefs.setCharPref(pref, "");
-            break;
         }
       }
     } catch (ex) {}