diff -r 000000000000 -r 6474c204b198 browser/devtools/shadereditor/test/browser_webgl-actor-test-16.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/shadereditor/test/browser_webgl-actor-test-16.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,128 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests if program actors are invalidated from the cache when a window is
+ * removed from the bfcache.
+ */
+
+function ifWebGLSupported() {
+  let [target, debuggee, front] = yield initBackend(SIMPLE_CANVAS_URL);
+  front.setup({ reload: false });
+
+  // 0. Perform the initial reload.
+
+  reload(target);
+  let firstProgram = yield once(front, "program-linked");
+  let programs = yield front.getPrograms();
+  is(programs.length, 1,
+    "The first program should be returned by a call to getPrograms().");
+  is(programs[0], firstProgram,
+    "The first programs was correctly retrieved from the cache.");
+
+  // 1. Perform a simple navigation.
+
+  navigate(target, MULTIPLE_CONTEXTS_URL);
+  let [secondProgram, thirdProgram] = yield getPrograms(front, 2);
+  let programs = yield front.getPrograms();
+  is(programs.length, 2,
+    "The second and third programs should be returned by a call to getPrograms().");
+  is(programs[0], secondProgram,
+    "The second programs was correctly retrieved from the cache.");
+  is(programs[1], thirdProgram,
+    "The third programs was correctly retrieved from the cache.");
+
+  // 2. Perform a bfcache navigation.
+
+  yield navigateInHistory(target, "back");
+  let globalDestroyed = observe("inner-window-destroyed");
+  let globalCreated = observe("content-document-global-created");
+  reload(target);
+
+  yield globalDestroyed;
+  let programs = yield front.getPrograms();
+  is(programs.length, 0,
+    "There should be no cached program actors yet.");
+
+  yield globalCreated;
+  let programs = yield front.getPrograms();
+  is(programs.length, 1,
+    "There should be 1 cached program actor now.");
+
+  yield checkHighlightingInTheFirstPage(programs[0]);
+  ok(true, "The cached programs behave correctly after navigating back and reloading.");
+
+  // 3. Perform a bfcache navigation and a page reload.
+
+  yield navigateInHistory(target, "forward");
+  let globalDestroyed = observe("inner-window-destroyed");
+  let globalCreated = observe("content-document-global-created");
+  reload(target);
+
+  yield globalDestroyed;
+  let programs = yield front.getPrograms();
+  is(programs.length, 0,
+    "There should be no cached program actors yet.");
+
+  yield getPrograms(front, 2);
+  yield globalCreated;
+  let programs = yield front.getPrograms();
+  is(programs.length, 2,
+    "There should be 2 cached program actors now.");
+
+  yield checkHighlightingInTheSecondPage(programs[0], programs[1]);
+  ok(true, "The cached programs behave correctly after navigating forward and reloading.");
+
+  yield removeTab(target.tab);
+  finish();
+
+  function checkHighlightingInTheFirstPage(programActor) {
+    return Task.spawn(function() {
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 0, b: 0, a: 255 }, true);
+      yield ensurePixelIs(debuggee, { x: 511, y: 511 }, { r: 0, g: 255, b: 0, a: 255 }, true);
+      ok(true, "The corner pixel colors are correct before highlighting.");
+
+      yield programActor.highlight([0, 1, 0, 1]);
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 0, g: 0, b: 0, a: 255 }, true);
+      yield ensurePixelIs(debuggee, { x: 511, y: 511 }, { r: 0, g: 255, b: 0, a: 255 }, true);
+      ok(true, "The corner pixel colors are correct after highlighting.");
+
+      yield programActor.unhighlight();
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 0, b: 0, a: 255 }, true);
+      yield ensurePixelIs(debuggee, { x: 511, y: 511 }, { r: 0, g: 255, b: 0, a: 255 }, true);
+      ok(true, "The corner pixel colors are correct after unhighlighting.");
+    });
+  }
+
+  function checkHighlightingInTheSecondPage(firstProgramActor, secondProgramActor) {
+    return Task.spawn(function() {
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 255, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 0, g: 255, b: 255, a: 255 }, true, "#canvas2");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 255, g: 255, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 0, g: 255, b: 255, a: 255 }, true, "#canvas2");
+      ok(true, "The two canvases are correctly drawn before highlighting.");
+
+      yield firstProgramActor.highlight([1, 0, 0, 1]);
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 0, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 0, g: 255, b: 255, a: 255 }, true, "#canvas2");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 255, g: 0, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 0, g: 255, b: 255, a: 255 }, true, "#canvas2");
+      ok(true, "The first canvas was correctly filled after highlighting.");
+
+      yield secondProgramActor.highlight([0, 1, 0, 1]);
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 0, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 0, g: 255, b: 0, a: 255 }, true, "#canvas2");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 255, g: 0, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 0, g: 255, b: 0, a: 255 }, true, "#canvas2");
+      ok(true, "The second canvas was correctly filled after highlighting.");
+
+      yield firstProgramActor.unhighlight();
+      yield secondProgramActor.unhighlight();
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 255, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 0, g: 255, b: 255, a: 255 }, true, "#canvas2");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 255, g: 255, b: 0, a: 255 }, true, "#canvas1");
+      yield ensurePixelIs(debuggee, { x: 127, y: 127 }, { r: 0, g: 255, b: 255, a: 255 }, true, "#canvas2");
+      ok(true, "The two canvases were correctly filled after unhighlighting.");
+    });
+  }
+}