Bug 1093941 - enable remaining urlbar tests with e10s. r=ttaubert

browser/base/content/test/general/browser.ini

@@ -426,10 +426,8 @@ skip-if = buildapp == 'mulet' || e10s # Bug 921935 - focusmanager issues with e1
 skip-if = e10s # Bug 1100700 - test relies on unload event firing on closed tabs, which it doesn't
 [browser_urlHighlight.js]
 [browser_urlbarAutoFillTrimURLs.js]
-skip-if = e10s # Bug 1093941 - Waits indefinitely for onSearchComplete
 [browser_urlbarCopying.js]
 [browser_urlbarEnter.js]
-skip-if = e10s # Bug 1093941 - used to cause obscure non-windows child process crashes on try
 [browser_urlbarEnterAfterMouseOver.js]
 skip-if = os == "linux" || e10s # Bug 1073339 - Investigate autocomplete test unreliability on Linux/e10s
 [browser_urlbarRevert.js]

browser/base/content/test/general/browser_urlbarEnter.js

@@ -25,10 +25,15 @@ add_task(function* () {
 add_task(function* () {
   info("Alt+Return keypress");
   let tab = gBrowser.selectedTab = gBrowser.addTab(START_VALUE);
+  // due to bug 691608, we must wait for the load event, else isTabEmpty() will
+  // return true on e10s for this tab, so it will be reused even with altKey.
+  yield BrowserTestUtils.browserLoaded(tab.linkedBrowser);
 
   gURLBar.focus();
   EventUtils.synthesizeKey("VK_RETURN", {altKey: true});
-  yield BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+
+  // wait for the new tab to appear.
+  yield BrowserTestUtils.waitForEvent(gBrowser.tabContainer, "TabOpen");
 
   // Check url bar and selected tab.
   is(gURLBar.textValue, TEST_VALUE, "Urlbar should preserve the value on return keypress");