Fix bug where we fail to install an extension that has an empty

chrome/common/extensions/extension.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/common/extensions/extension.h"
 
 #include "app/resource_bundle.h"
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 929 matching lines @@
 
   // Initialize the permissions (optional).
   if (source.HasKey(keys::kPermissions)) {
     ListValue* permissions = NULL;
     if (!source.GetList(keys::kPermissions, &permissions)) {
       *error = ExtensionErrorUtils::FormatErrorMessage(
           errors::kInvalidPermissions, "");
       return false;
     }
 
-    if (permissions->GetSize() == 0) {
-      ExtensionErrorReporter::GetInstance()->ReportError(
-          errors::kInvalidPermissionCountWarning, false);
-    }
-
     for (size_t i = 0; i < permissions->GetSize(); ++i) {
       std::string permission_str;
       if (!permissions->GetString(i, &permission_str)) {
         *error = ExtensionErrorUtils::FormatErrorMessage(
             errors::kInvalidPermission, IntToString(i));
         return false;
       }
 
       // Check if it's a module permission.  If so, enable that permission.
       if (IsAPIPermission(permission_str)) {
@@ skipping 166 matching lines @@
     UserScript::PatternList::const_iterator pattern =
         content_script->url_patterns().begin();
     for (; pattern != content_script->url_patterns().end(); ++pattern) {
       if (pattern->match_subdomains() && pattern->host().empty())
         return true;
     }
   }
 
   return false;
 }