diff --git a/.eslintignore b/.eslintignore
index cf1522f3a6e..23f2b3968e1 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -195,6 +195,7 @@ toolkit/components/places/**
 
 # Uses preprocessing
 toolkit/content/contentAreaUtils.js
+toolkit/content/widgets/videocontrols.xml
 toolkit/components/jsdownloads/src/DownloadIntegration.jsm
 toolkit/components/search/nsSearchService.js
 toolkit/components/url-classifier/**
diff --git a/toolkit/content/widgets/videocontrols.xml b/toolkit/content/widgets/videocontrols.xml
index 74aaf95e237..8b7f642199b 100644
--- a/toolkit/content/widgets/videocontrols.xml
+++ b/toolkit/content/widgets/videocontrols.xml
@@ -794,18 +794,16 @@
                 },
 
                 seekToPosition : function(newPosition) {
-                    let { AppConstants } =
-                        Components.utils.import("resource://gre/modules/AppConstants.jsm", {});
                     newPosition /= 1000; // convert from ms
                     this.log("+++ seeking to " + newPosition);
-                    if (AppConstants.platform == "gonk") {
-                        // We use fastSeek() on B2G, and an accurate (but slower)
-                        // seek on other platforms (that are likely to be higher
-                        // perf).
-                        this.video.fastSeek(newPosition);
-                    } else {
-                        this.video.currentTime = newPosition;
-                    }
+#ifdef MOZ_WIDGET_GONK
+                    // We use fastSeek() on B2G, and an accurate (but slower)
+                    // seek on other platforms (that are likely to be higher
+                    // perf).
+                    this.video.fastSeek(newPosition);
+#else
+                    this.video.currentTime = newPosition;
+#endif
                 },
 
                 setVolume : function(newVolume) {
@@ -1254,24 +1252,22 @@
                     if (!this.video.hasAttribute("controls"))
                         return;
 
-                    let { AppConstants } =
-                        Components.utils.import("resource://gre/modules/AppConstants.jsm", {});
                     var keystroke = "";
                     if (event.altKey)
                         keystroke += "alt-";
                     if (event.shiftKey)
                         keystroke += "shift-";
-                    if (AppConstants.platform == "macosx") {
-                        if (event.metaKey)
-                            keystroke += "accel-";
-                        if (event.ctrlKey)
-                            keystroke += "control-";
-                    } else {
-                        if (event.metaKey)
-                            keystroke += "meta-";
-                        if (event.ctrlKey)
-                            keystroke += "accel-";
-                    }
+#ifdef XP_MACOSX
+                    if (event.metaKey)
+                        keystroke += "accel-";
+                    if (event.ctrlKey)
+                        keystroke += "control-";
+#else
+                    if (event.metaKey)
+                        keystroke += "meta-";
+                    if (event.ctrlKey)
+                        keystroke += "accel-";
+#endif
 
                     switch (event.keyCode) {
                         case KeyEvent.DOM_VK_UP: