Bug 1407326 - remove references to invertIconForLightTheme in extensions codebase;r=rpl

MozReview-Commit-ID: B2eTpm6qbOh

--HG--
extra : rebase_source : 4435d53e0f96a2beea27d5e727642479fba7d1f2

browser/components/extensions/ext-devtools-panels.js

@@ -88,7 +88,6 @@ class ParentDevToolsPanel {
       icon: icon,
       label: title,
       tooltip: `DevTools Panel added by "${extensionName}" add-on.`,
-      invertIconForLightTheme: false,
       visibilityswitch:  `devtools.webext-${this.id}.enabled`,
       isTargetSupported: target => target.isLocalTab,
       build: (window, toolbox) => {

browser/components/extensions/test/browser/browser_ext_devtools_panel.js

@@ -214,9 +214,6 @@ add_task(async function test_devtools_page_panels_create() {
   const panelDef = toolboxAdditionalTools[0];
   const panelId = panelDef.id;
 
-  is(panelDef.invertIconForLightTheme, false,
-     "devtools.panel.create set invertIconForLightTheme to false by default");
-
   await gDevTools.showToolbox(target, panelId);
   const {devtoolsPageTabId} = await extension.awaitMessage("devtools_panel_shown");
   const devtoolsPanelTabId = await extension.awaitMessage("devtools_panel_inspectedWindow_tabId");