Add AppWindow.setVisibleOnAllWorkspaces.

chrome/renderer/resources/extensions/app_window_custom_bindings.js

Index: chrome/renderer/resources/extensions/app_window_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/app_window_custom_bindings.js b/chrome/renderer/resources/extensions/app_window_custom_bindings.js
index 812d3d6c6af54474773bc45892310b9ce48314e4..1a889b7a47740ca024ebd643a2397bb20492263d 100644
--- a/chrome/renderer/resources/extensions/app_window_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/app_window_custom_bindings.js
@@ -244,6 +244,9 @@ appWindow.registerCustomHook(function(bindingsAPI) {
     AppWindow.prototype.alphaEnabled = function() {
       return appWindowData.alphaEnabled;
     };
+    AppWindow.prototype.canSetVisibleOnAllWorkspaces = function () {
+      return appWindowData.canSetVisibleOnAllWorkspaces;
+    };
     AppWindow.prototype.handleWindowFirstShownForTests = function(callback) {
       // This allows test apps to get have their callback run even if they
       // call this after the first show has happened.
@@ -305,7 +308,8 @@ appWindow.registerCustomHook(function(bindingsAPI) {
       hasFrameColor: params.hasFrameColor,
       activeFrameColor: params.activeFrameColor,
       inactiveFrameColor: params.inactiveFrameColor,
-      alphaEnabled: params.alphaEnabled
+      alphaEnabled: params.alphaEnabled,
+      canSetVisibleOnAllWorkspaces: params.canSetVisibleOnAllWorkspaces
     };
     currentAppWindow = new AppWindow;
   });