<webview>: Implement WebRequest API

chrome/common/extensions/permissions/permission_set.cc

 // Copyright (c) 2013 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/permissions/permission_set.h"
 
 #include <algorithm>
 #include <iterator>
 #include <string>
 
@@ skipping 506 matching lines @@
        it != hosts_best_rcd.end(); ++it)
     distinct_hosts.insert(it->first + it->second);
   return distinct_hosts;
 }
 
 void PermissionSet::InitImplicitPermissions() {
   // The downloads permission implies the internal version as well.
   if (apis_.find(APIPermission::kDownloads) != apis_.end())
     apis_.insert(APIPermission::kDownloadsInternal);
 
+  // TODO(fsamuel): Is there a better way to request access to the WebRequest
+  // API without exposing it to the Chrome App?
+  if (apis_.find(APIPermission::kWebView) != apis_.end())
+    apis_.insert(APIPermission::kWebRequestInternal);
+
   // The webRequest permission implies the internal version as well.
   if (apis_.find(APIPermission::kWebRequest) != apis_.end())
     apis_.insert(APIPermission::kWebRequestInternal);
 
   // The fileBrowserHandler permission implies the internal version as well.
   if (apis_.find(APIPermission::kFileBrowserHandler) != apis_.end())
     apis_.insert(APIPermission::kFileBrowserHandlerInternal);
 }
 
 void PermissionSet::InitEffectiveHosts() {
@@ skipping 58 matching lines @@
   std::set<std::string> new_hosts_only;
 
   std::set_difference(new_hosts_set.begin(), new_hosts_set.end(),
                       old_hosts_set.begin(), old_hosts_set.end(),
                       std::inserter(new_hosts_only, new_hosts_only.begin()));
 
   return !new_hosts_only.empty();
 }
 
 }  // namespace extensions