Bug 1301340 - part2: Force single content process in some tests. r=mrbkap

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

@@ -91,7 +91,7 @@ function waitForCondition(condition, nextTest, errorMsg, okMsg) {
       moveOn();
     }
     tries++;
-  }, 100);
+  }, 500);
   var moveOn = function() {
     clearInterval(interval); nextTest();
   };

browser/base/content/test/social/browser_social_activation.js

@@ -169,7 +169,9 @@ function test() {
     PopupNotifications.panel.removeAttribute("animate");
   });
   waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [["dom.ipc.processCount", 1]]}, () => {
     runSocialTests(tests, undefined, postTestCleanup);
+  });
 }
 
 var tests = {

browser/base/content/test/webrtc/browser_devices_get_user_media_tear_off_tab.js

@@ -65,7 +65,10 @@ var gTests = [
 
 function test() {
   waitForExplicitFinish();
+  SpecialPowers.pushPrefEnv({"set": [["dom.ipc.processCount", 1]]}, runTest);
+}
 
+function runTest() {
   // An empty tab where we can load the content script without leaving it
   // behind at the end of the test.
   gBrowser.addTab();

browser/components/originattributes/test/browser/head.js

@@ -213,6 +213,8 @@ this.IsolationTestTools = {
       // Make sure preferences are set properly.
       yield SpecialPowers.pushPrefEnv({"set": aPref});
 
+      yield SpecialPowers.pushPrefEnv({"set": [["dom.ipc.processCount", 1]]});
+
       yield aTask(aMode);
     });
   },

devtools/client/responsive.html/test/browser/browser_toolbox_swap_browsers.js

@@ -30,6 +30,12 @@ let checkToolbox = Task.async(function* (tab, location) {
   ok(!!gDevTools.getToolbox(target), `Toolbox exists ${location}`);
 });
 
+add_task(function* setup() {
+  yield SpecialPowers.pushPrefEnv({
+    set: [["dom.ipc.processCount", 1]]
+  });
+});
+
 add_task(function* () {
   let tab = yield addTab(TEST_URL);
 

toolkit/mozapps/extensions/test/browser/browser_bug562797.js

@@ -58,6 +58,9 @@ function test() {
 
   Services.prefs.setCharPref(PREF_DISCOVERURL, MAIN_URL);
 
+  SpecialPowers.pushPrefEnv({"set": [
+      ["dom.ipc.processCount", 1],
+    ]}, () => {
     var gProvider = new MockProvider();
     gProvider.createAddons([{
       id: "test1@tests.mozilla.org",
@@ -75,6 +78,7 @@ function test() {
       type: "theme",
       description: "bar"
     }]);
+  });
 
   run_next_test();
 }