Bug 1735143 - Ensure various tests within devtools are https-first compliant r=bomsy

The following test suites are green in https-first with this patch:
    devtools/client/memory/test/browser/browser.ini
    devtools/client/responsive/test/browser/browser.ini
    devtools/client/shared/test/browser.ini
    devtools/client/styleeditor/test/browser.ini
    devtools/shared/commands/resource/tests/browser.ini

Differential Revision: https://phabricator.services.mozilla.com/D128082

devtools/client/memory/test/browser/browser_memory_allocationStackDisplay_02.js

@@ -16,7 +16,7 @@ const { viewState } = require("devtools/client/memory/constants");
 const { changeView } = require("devtools/client/memory/actions/view");
 
 const TEST_URL =
-  "http://example.com/browser/devtools/client/memory/test/browser/doc_steady_allocation.html";
+  "https://example.com/browser/devtools/client/memory/test/browser/doc_steady_allocation.html";
 
 this.test = makeMemoryTest("about:blank", async function({ tab, panel }) {
   const heapWorker = panel.panelWin.gHeapAnalysesClient;

devtools/client/responsive/test/browser/browser_container_tab.js

@@ -5,7 +5,7 @@
 
 // Verify RDM opens for a container tab.
 
-const TEST_URL = "http://example.com/";
+const TEST_URL = "https://example.com/";
 
 addRDMTask(
   null,

devtools/client/shared/test/browser_link.js

@@ -6,7 +6,7 @@
 // Test link helpers openDocLink, openTrustedLink.
 
 // Use any valid test page here.
-const TEST_URI = TEST_URI_ROOT + "dummy.html";
+const TEST_URI = TEST_URI_ROOT_SSL + "dummy.html";
 
 const { openDocLink, openTrustedLink } = require("devtools/client/shared/link");
 

devtools/client/styleeditor/test/browser_styleeditor_loading.js

@@ -4,7 +4,7 @@
 
 // Test that style editor loads correctly.
 
-const TESTCASE_URI = TEST_BASE_HTTP + "longload.html";
+const TESTCASE_URI = TEST_BASE_HTTPS + "longload.html";
 
 add_task(async function() {
   // launch Style Editor right when the tab is created (before load)

devtools/shared/commands/resource/tests/browser_resources_several_resources.js

@@ -55,7 +55,7 @@ add_task(async function() {
   // Check that the resource command captures resources from new targets.
   info("Open a first tab on the example.com domain");
   const comTab = await addTab(
-    "http://example.com/document-builder.sjs?html=com"
+    "https://example.com/document-builder.sjs?html=com"
   );
   info("Use console.log in the example.com page");
   logInTab(comTab, "test-from-example-com");
@@ -73,18 +73,18 @@ add_task(async function() {
 
   // Check that messages from new targets are still captured after calling
   // unwatch for another resource.
-  info("Open a second tab on the example.net domain");
-  const netTab = await addTab(
-    "http://example.net/document-builder.sjs?html=net"
+  info("Open a second tab on the example.org domain");
+  const orgTab = await addTab(
+    "https://example.org/document-builder.sjs?html=org"
   );
-  info("Use console.log in the example.net page");
-  logInTab(netTab, "test-from-example-net");
+  info("Use console.log in the example.org page");
+  logInTab(orgTab, "test-from-example-org");
   info(
-    "Wait until onAvailable received the CONSOLE_MESSAGE resource emitted from the example.net tab"
+    "Wait until onAvailable received the CONSOLE_MESSAGE resource emitted from the example.org tab"
   );
   await waitUntil(() =>
     receivedMessages.find(
-      resource => resource.message.arguments[0] === "test-from-example-net"
+      resource => resource.message.arguments[0] === "test-from-example-org"
     )
   );
 

devtools/shared/commands/resource/tests/browser_resources_websocket.js

@@ -26,7 +26,7 @@ add_task(async function() {
 });
 
 async function testWebsocketResources(target) {
-  const tab = await addTab(URL_ROOT + "websocket_frontend.html");
+  const tab = await addTab(URL_ROOT_SSL + "websocket_frontend.html");
   const { client, resourceCommand, targetCommand } = await initResourceCommand(
     tab
   );
@@ -59,7 +59,7 @@ async function testWebsocketResources(target) {
   assertResource(availableResources[0], {
     wsMessageType: "webSocketOpened",
     effectiveURI:
-      "ws://mochi.test:8888/browser/devtools/shared/commands/resource/tests/websocket_backend",
+      "wss://example.com/browser/devtools/shared/commands/resource/tests/websocket_backend",
     extensions: "permessage-deflate",
     protocols: "",
   });

devtools/shared/commands/resource/tests/websocket_frontend.html

@@ -16,7 +16,7 @@
       function openConnection() {
         return new Promise(resolve => {
           webSocket = new WebSocket(
-            "ws://mochi.test:8888/browser/devtools/shared/commands/resource/tests/websocket_backend"
+            "wss://example.com/browser/devtools/shared/commands/resource/tests/websocket_backend"
           );
           webSocket.onopen = () => {
             resolve();
@@ -38,8 +38,8 @@
       }
     </script>
     <iframe id="in-process-frame"
-      src="http://example.com/browser/devtools/shared/commands/resource/tests/websocket_frontend_iframe.html"></iframe>
+      src="https://example.com/browser/devtools/shared/commands/resource/tests/websocket_frontend_iframe.html"></iframe>
     <iframe id="out-process-frame"
-      src="http://example.org/browser/devtools/shared/commands/resource/tests/websocket_frontend_iframe.html"></iframe>
+      src="https://example.org/browser/devtools/shared/commands/resource/tests/websocket_frontend_iframe.html"></iframe>
   </body>
 </html>

devtools/shared/commands/resource/tests/websocket_frontend_iframe.html

@@ -16,7 +16,7 @@
     function openConnection() {
       return new Promise(resolve => {
         webSocket = new WebSocket(
-          "ws://mochi.test:8888/browser/devtools/shared/commands/resource/tests/websocket_backend"
+          "wss://example.com/browser/devtools/shared/commands/resource/tests/websocket_backend"
         );
         webSocket.onopen = () => {
           resolve();