Add support for actions for multiple file selection.

chrome/renderer/resources/extensions/file_manager_private_custom_bindings.js

Index: chrome/renderer/resources/extensions/file_manager_private_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/file_manager_private_custom_bindings.js b/chrome/renderer/resources/extensions/file_manager_private_custom_bindings.js
index 5b0ddc7794900d95cd3e5ada6928d995ce0145cf..40cc343247e75ee34cd35b854e035e618635252e 100644
--- a/chrome/renderer/resources/extensions/file_manager_private_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/file_manager_private_custom_bindings.js
@@ -87,15 +87,20 @@ binding.registerCustomHook(function(bindingsAPI) {
     fileManagerPrivateInternal.removeFileWatch(url, callback);
   });
 
-  apiFunctions.setHandleRequest('getEntryActions', function(entry, callback) {
-    var url = fileBrowserHandlerNatives.GetEntryURL(entry);
-    fileManagerPrivateInternal.getEntryActions(url, callback);
+  apiFunctions.setHandleRequest('getCustomActions', function(
+        entries, callback) {
+    var urls = entries.map(function(entry) {
+      return fileBrowserHandlerNatives.GetEntryURL(entry);
+    });
+    fileManagerPrivateInternal.getCustomActions(urls, callback);
   });
 
-  apiFunctions.setHandleRequest('executeEntryAction', function(
-        entry, actionId, callback) {
-    var url = fileBrowserHandlerNatives.GetEntryURL(entry);
-    fileManagerPrivateInternal.executeEntryAction(url, actionId, callback);
+  apiFunctions.setHandleRequest('executeCustomAction', function(
+        entries, actionId, callback) {
+    var urls = entries.map(function(entry) {
+      return fileBrowserHandlerNatives.GetEntryURL(entry);
+    });
+    fileManagerPrivateInternal.executeCustomAction(urls, actionId, callback);
   });
 
   apiFunctions.setHandleRequest('computeChecksum', function(entry, callback) {