Added new fileBrowserPrivate and fileHandler extension APIs

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
===================================================================
--- chrome/common/extensions/extension.cc	(revision 79517)
+++ chrome/common/extensions/extension.cc	(working copy)
@@ -1909,16 +1909,17 @@
       // TODO(asargent) - We want a more general purpose mechanism for this,
       // and better error messages. (http://crbug.com/54013)
       if ((permission_str == kWebstorePrivatePermission ||
+           permission_str == kChromeosInfoPrivatePermissions ||
            permission_str == kFileBrowserPrivatePermission) &&
-          location_ != Extension::COMPONENT) {
+          (location_ != Extension::COMPONENT
+#ifndef NDEBUG
+           && !CommandLine::ForCurrentProcess()->HasSwitch(
+                 switches::kExposePrivateExtensionApi)
+#endif
+            )) {
         continue;
       }
 
-      if (permission_str == kChromeosInfoPrivatePermissions &&
-          location_ != Extension::COMPONENT) {
-        continue;
-      }
-
       // Remap the old unlimited storage permission name.
       if (permission_str == kOldUnlimitedStoragePermission)
         permission_str = kUnlimitedStoragePermission;