Make miscellaneous_bindings and event_bindings Required as needed. Previously

chrome/renderer/resources/extensions/app_custom_bindings.js

Index: chrome/renderer/resources/extensions/app_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/app_custom_bindings.js b/chrome/renderer/resources/extensions/app_custom_bindings.js
index 0c2011d18737f436a103952dbd48182d2fce42a1..b55fa7636bab95b422cce4c52d69dc97bbff7eb0 100644
--- a/chrome/renderer/resources/extensions/app_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/app_custom_bindings.js
@@ -7,7 +7,7 @@
 var GetAvailability = requireNative('v8_context').GetAvailability;
 if (!GetAvailability('app').is_available) {
   exports.chromeApp = {};
-  exports.chromeHiddenApp = {};
+  exports.onInstallStateResponse = function(){};
   return;
 }
 
@@ -61,17 +61,13 @@ else
                        wrapForLogging(appNatives.GetIsInstalled));
 
 // Called by app_bindings.cc.
-// This becomes chromeHidden.app
-var chromeHiddenApp = {
-  onInstallStateResponse: function(state, callbackId) {
-    if (callbackId) {
-      callbacks[callbackId](state);
-      delete callbacks[callbackId];
-    }
-  }
-};
+function onInstallStateResponse(state, callbackId) {
+  var callback = callbacks[callbackId];
+  delete callbacks[callbackId];
+  if (callback)
+    callback(state);
+}
 
-// TODO(kalman): move this stuff to its own custom bindings.
 var callbacks = {};
 var nextCallbackId = 1;
 
@@ -83,7 +79,10 @@ app.installState = function getInstallState(callback) {
 if (extensionId)
   app.installState = wrapForLogging(app.installState);
 
-// These must match the names in InstallAppbinding() in
+// This must match InstallAppbinding() in
 // chrome/renderer/extensions/dispatcher.cc.
+//
+// TODO(kalman): we can get rid of this when the bindings code can be run in
+// all renderers - very soon!
 exports.chromeApp = app;
-exports.chromeHiddenApp = chromeHiddenApp;
+exports.onInstallStateResponse = onInstallStateResponse;