Bug 1422985. Send webrender prefs & label in webcompat reports (when enabled). r=Gijs

MozReview-Commit-ID: DtBE4JKp37F

--HG--
extra : rebase_source : 5e5deec8b67aff53760f1aec08a4b58f7f6b5ff5

browser/extensions/webcompat-reporter/content/WebCompatReporter.jsm

@@ -6,6 +6,7 @@ this.EXPORTED_SYMBOLS = ["WebCompatReporter"];
 
 let { classes: Cc, interfaces: Ci, utils: Cu } = Components;
 
+Cu.import("resource://gre/modules/AppConstants.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 
@@ -19,8 +20,16 @@ XPCOMUtils.defineLazyGetter(this, "wcStrings", function() {
 
 // Gather values for prefs we want to appear in reports.
 let prefs = {};
+XPCOMUtils.defineLazyPreferenceGetter(prefs, "gfx.webrender.all", "gfx.webrender.all", false);
+XPCOMUtils.defineLazyPreferenceGetter(prefs, "gfx.webrender.blob-images", "gfx.webrender.blob-images", 2);
+XPCOMUtils.defineLazyPreferenceGetter(prefs, "gfx.webrender.enabled", "gfx.webrender.enabled", false);
+XPCOMUtils.defineLazyPreferenceGetter(prefs, "image.mem.shared", "image.mem.shared", 2);
 XPCOMUtils.defineLazyPreferenceGetter(prefs, "layout.css.servo.enabled", "layout.css.servo.enabled", false);
 
+if (AppConstants.platform == "linux") {
+  XPCOMUtils.defineLazyPreferenceGetter(prefs, "layers.acceleration.force-enabled", "layers.acceleration.force-enabled", false);
+}
+
 let WebCompatReporter = {
   get endpoint() {
     return Services.urlFormatter.formatURLPref(
@@ -91,6 +100,10 @@ let WebCompatReporter = {
       params.append("label", "type-stylo");
     }
 
+    if (prefs["gfx.webrender.all"] || prefs["gfx.webrender.enabled"]) {
+      params.append("label", "type-webrender-enabled");
+    }
+
     let tab = gBrowser.loadOneTab(
       `${WebCompatReporter.endpoint}?${params}`,
       {inBackground: false, triggeringPrincipal: Services.scriptSecurityManager.getSystemPrincipal()});