Bug 1408993 - Allow tabs.create to create URLS in reader mode, r=mixedpuppy

MozReview-Commit-ID: B5Nk0ZVvQIC

--HG--
extra : rebase_source : 6f515ef1dbc110c35b527e06f269ae703bb77468

browser/components/extensions/ext-tabs.js

@@ -346,6 +346,10 @@ this.tabs = class extends ExtensionAPI {
               if (!context.checkLoadURL(url, {dontReportErrors: true})) {
                 return Promise.reject({message: `Illegal URL: ${url}`});
               }
+
+              if (createProperties.openInReaderMode) {
+                url = `about:reader?url=${encodeURIComponent(url)}`;
+              }
             }
 
             if (createProperties.cookieStoreId && !extension.hasPermission("cookies")) {

browser/components/extensions/schemas/tabs.json

@@ -497,7 +497,10 @@
                 "type": "string",
                 "optional": true,
                 "description": "The CookieStoreId for the tab that opened this tab."
-              }
+              },
+              "openInReaderMode": {
+                "type": "boolean",
+                "optional": true, "description": "Whether the document in the tab should be opened in reader mode."}
             }
           },
           {

browser/components/extensions/test/browser/browser_ext_tabs_create.js

@@ -59,6 +59,10 @@ add_task(async function test_create_options() {
               create: {url: "blank.html"},
               result: {url: browser.runtime.getURL("bg/blank.html")},
             },
+            {
+              create: {url: "http://example.com/", openInReaderMode: true},
+              result: {url: `about:reader?url=${encodeURIComponent("http://example.com/")}`},
+            },
             {
               create: {},
               result: {url: "about:newtab"},