Bug 1287143 - Remove the window argument to SpecialPowers.exactGC(). r=jmaher

Cu.forceCC() is the same as DOMWindowUtils.cycleCollect(), but does
not require a window.

dom/base/test/browser_use_counters.js

@@ -87,7 +87,7 @@ add_task(function* () {
 
 function waitForDestroyedDocuments() {
   let deferred = promise.defer();
-  SpecialPowers.exactGC(window, deferred.resolve);
+  SpecialPowers.exactGC(deferred.resolve);
   return deferred.promise;
 }
 

dom/base/test/test_navigator_language.html

@@ -195,7 +195,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=889335
       document.body.removeChild(frame);
       frame = null;
 
-      SpecialPowers.exactGC(window, function() {
+      SpecialPowers.exactGC(function() {
         // This should not crash.
         SpecialPowers.pushPrefEnv({"set": [['intl.accept_languages', 'en-GB']]}, nextTest);
       });

dom/bindings/test/test_traceProtos.html

@@ -29,7 +29,7 @@ function callback() {
 }
 
 delete window.XMLHttpRequestUpload;
-SpecialPowers.exactGC(window, callback);
+SpecialPowers.exactGC(callback);
 
 </script>
 </pre>

dom/cache/test/mochitest/test_cache_orphaned_body.html

@@ -54,7 +54,7 @@ function resetStorage() {
 
 function gc() {
   return new Promise(function(resolve, reject) {
-    SpecialPowers.exactGC(window, resolve);
+    SpecialPowers.exactGC(resolve);
   });
 }
 

dom/cache/test/mochitest/test_cache_orphaned_cache.html

@@ -54,7 +54,7 @@ function resetStorage() {
 
 function gc() {
   return new Promise(function(resolve, reject) {
-    SpecialPowers.exactGC(window, resolve);
+    SpecialPowers.exactGC(resolve);
   });
 }
 

dom/cache/test/mochitest/test_cache_shrink.html

@@ -54,7 +54,7 @@ function resetStorage() {
 
 function gc() {
   return new Promise(function(resolve, reject) {
-    SpecialPowers.exactGC(window, resolve);
+    SpecialPowers.exactGC(resolve);
   });
 }
 

dom/indexedDB/test/helpers.js

@@ -345,7 +345,7 @@ function gc()
 
 function scheduleGC()
 {
-  SpecialPowers.exactGC(window, continueToNextStep);
+  SpecialPowers.exactGC(continueToNextStep);
 }
 
 function workerScript() {

dom/indexedDB/test/unit/xpcshell-head-parent-process.js

@@ -217,7 +217,7 @@ function gc()
 
 function scheduleGC()
 {
-  SpecialPowers.exactGC(null, continueToNextStep);
+  SpecialPowers.exactGC(continueToNextStep);
 }
 
 function setTimeout(fun, timeout) {
@@ -492,7 +492,7 @@ var SpecialPowers = {
     this._getPrefs().clearUserPref(prefName);
   },
   // Copied (and slightly adjusted) from specialpowersAPI.js
-  exactGC: function(win, callback) {
+  exactGC: function(callback) {
     let count = 0;
 
     function doPreciseGCandCC() {

dom/media/test/manifest.js

@@ -1665,7 +1665,7 @@ function mediaTestCleanup(callback) {
       removeNodeAndSource(A[i]);
       A[i] = null;
     }
-    SpecialPowers.exactGC(window, callback);
+    SpecialPowers.exactGC(callback);
 }
 
 function setMediaTestsPrefs(callback, extraPrefs) {

dom/media/test/test_bug1248229.html

@@ -20,7 +20,7 @@ function doTest() {
   v.onended = function() {
     info("Got ended.");
     v.onended = null;
-    SpecialPowers.exactGC(window, function() {
+    SpecialPowers.exactGC(function() {
       info("GC completed.");
       v.play();
       SimpleTest.finish();

dom/media/tests/mochitest/head.js

@@ -324,7 +324,7 @@ function setupEnvironment() {
 
   // We don't care about waiting for this to complete, we just want to ensure
   // that we don't build up a huge backlog of GC work.
-  SpecialPowers.exactGC(window);
+  SpecialPowers.exactGC();
 }
 
 // This is called by steeplechase; which provides the test configuration options

dom/media/webaudio/test/browser_bug1181073.js

@@ -55,7 +55,7 @@ add_task(function*() {
   ok(time < 1000, "Interval is not throttled with audio playing (" + time + " ms)");
 
   // Destroy the oscillator, but not the audio context
-  yield new Promise(resolve => SpecialPowers.exactGC(browser.contentWindow, resolve));
+  yield new Promise(resolve => SpecialPowers.exactGC(resolve));
   yield oscillatorDemisePromise;
 
   time = yield ContentTask.spawn(browser, null, function () {

dom/workers/test/serviceworkers/test_bug1151916.html

@@ -59,7 +59,7 @@
 
   function gc() {
    return new Promise(function(resolve) {
-     SpecialPowers.exactGC(window, resolve);
+     SpecialPowers.exactGC(resolve);
    });
   }
 

dom/workers/test/serviceworkers/test_https_synth_fetch_from_cached_sw.html

@@ -38,7 +38,7 @@
         // properly store and retrieve the security info from the cache.
         iframe.parentNode.removeChild(iframe);
         iframe = null;
-        SpecialPowers.exactGC(window, function() {
+        SpecialPowers.exactGC(function() {
           iframe = document.createElement("iframe");
           iframe.src = "https://example.com/tests/dom/workers/test/serviceworkers/fetch/https/synth.html";
           document.body.appendChild(iframe);

dom/workers/test/serviceworkers/test_notification_get.html

@@ -23,7 +23,7 @@
         iframe.src = "about:blank";
         document.body.removeChild(iframe);
         iframe = null;
-        SpecialPowers.exactGC(window, function() {
+        SpecialPowers.exactGC(function() {
           resolve(result);
         });
       };

dom/workers/test/serviceworkers/test_sanitize.html

@@ -59,7 +59,7 @@
         iframe.src = "about:blank";
         document.body.removeChild(iframe);
         iframe = null;
-        SpecialPowers.exactGC(window, function() {
+        SpecialPowers.exactGC(function() {
           resolve(message.data);
         });
       };

dom/workers/test/serviceworkers/test_sanitize_domain.html

@@ -58,7 +58,7 @@
         iframe.src = "about:blank";
         document.body.removeChild(iframe);
         iframe = null;
-        SpecialPowers.exactGC(window, function() {
+        SpecialPowers.exactGC(function() {
           resolve(message.data);
         });
       };

dom/workers/test/test_multi_sharedWorker_lifetimes.html

@@ -113,7 +113,7 @@
 
           for (let i = 0; i < 3; i++) {
             info("Running GC");
-            SpecialPowers.exactGC(window, sendToGenerator);
+            SpecialPowers.exactGC(sendToGenerator);
             yield undefined;
 
             info("Waiting the event queue to clear");

js/xpconnect/tests/chrome/test_weakref.xul

@@ -29,6 +29,6 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=484459
       SimpleTest.finish();
     }
 
-    SpecialPowers.exactGC(window, callback);
+    SpecialPowers.exactGC(callback);
   ]]></script>
 </window>

testing/specialpowers/content/specialpowersAPI.js

@@ -1489,13 +1489,12 @@ SpecialPowersAPI.prototype = {
   // needs to run several times and when no other JS is running.
   // The current number of iterations has been determined according to massive
   // cross platform testing.
-  exactGC: function(win, callback) {
-    var self = this;
+  exactGC: function(callback) {
     let count = 0;
 
     function genGCCallback(cb) {
       return function() {
-        self.getDOMWindowUtils(win).cycleCollect();
+        Cu.forceCC();
         if (++count < 2) {
           Cu.schedulePreciseGC(genGCCallback(cb));
         } else if (cb) {