Introduce ActiveScriptController; track active extension scripts

extensions/common/permissions/permissions_data.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 "extensions/common/permissions/permissions_data.h"
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 542 matching lines @@
     if (error)
       *error = errors::kActiveTabPermissionNotGranted;
     return false;
   }
 
   if (error)
     *error = errors::kAllURLOrActiveTabNeeded;
   return false;
 }
 
+// static
+bool PermissionsData::RequiresActionForScriptExecution(
+    const Extension* extension) {
+  // For now, the user should be notified when an extension with all hosts
+  // permission tries to execute a script on a page.
+  return HasEffectiveAccessToAllHosts(extension);
+}
+
 bool PermissionsData::ParsePermissions(Extension* extension,
                                        base::string16* error) {
   initial_required_permissions_.reset(new InitialPermissions);
   if (!ParseHelper(extension,
                    keys::kPermissions,
                    &initial_required_permissions_->api_permissions,
                    &initial_required_permissions_->host_permissions,
                    error)) {
     return false;
   }
@@ skipping 32 matching lines @@
       initial_optional_permissions_->api_permissions,
       initial_optional_permissions_->manifest_permissions,
       initial_optional_permissions_->host_permissions,
       URLPatternSet());
 
   initial_required_permissions_.reset();
   initial_optional_permissions_.reset();
 }
 
 }  // namespace extensions