Refactor and fix feedback

chrome/browser/userfeedback/proto/dom.proto

-// Copyright 2009 Google Inc. All Rights Reserved.
-// Author: micapolos@google.com (Michal Pociecha-Los)
-//
-// Messages containing DOM data captured from the browser.
-// It includes the structure of the HTML document and Navigator data.
-
-syntax = "proto2";
-
-option optimize_for = LITE_RUNTIME;
-
-package userfeedback;
-
-// Data captured from HTMLDocument DOM object.
-message HtmlDocument {
-
-  // The value of document.URL property.
-  required string url = 1;
-
-  // The value of document.title property.
-  optional string title = 2;
-
-  // The value of document.documentElement property.
-  optional HtmlElement document_element = 3;
-};
-
-// Data captured from HTMLElement DOM object.
-message HtmlElement {
-
-  // The value of element.tagName property.
-  required string tag_name = 1;
-
-  // The value of element.id property.
-  optional string id = 2;
-
-  // The value of element.className property.
-  optional string class_name = 3;
-
-  // A list of child elements.
-  repeated HtmlElement child_element = 4;
-
-  // The value of frame.contentDocument property for FRAME and IFRAME elements.
-  optional HtmlDocument frame_content_document = 5;
-};
-
-// Data captured from DOM Navigator object.
-message Navigator {
-
-  // The value of 'navigator.appCodeName' property.
-  optional string app_code_name = 1;
-
-  // The value of 'navigator.appName' property.
-  optional string app_name = 2;
-
-  // The value of 'navigator.appVersion' property.
-  optional string app_version = 3;
-
-  // The value of 'navigator.appMinorVersion' property.
-  optional string app_minor_version = 4;
-
-  // The value of 'navigator.cookieEnabled' property.
-  optional bool cookie_enabled = 5;
-
-  // The value of 'navigator.cpuClass' property.
-  optional string cpu_class = 6;
-
-  // The value of 'navigator.onLine' property.
-  optional bool on_line = 7;
-
-  // The value of 'navigator.platform' property.
-  optional string platform = 8;
-
-  // The value of 'navigator.browserLanguage' property.
-  optional string browser_language = 9;
-
-  // The value of 'navigator.systemLanguage' property.
-  optional string system_language = 10;
-
-  // The value of 'navigator.userAgent' property.
-  optional string user_agent = 11;
-
-  // The return value of 'navigator.javaEnabled()' method.
-  optional bool java_enabled = 12;
-
-  // The return value of 'navigator.taintEnabled()' method.
-  optional bool taint_enabled = 13;
-
-  // Plugin names specified by 'navigator.plugins' property.
-  repeated string plugin_name = 14;
-};
-
-// A path in the HTML document between two elements, which are in the
-// ancestor-descendant relationship.
-message HtmlPath {
-
-  // Ordered list of zero-based indices.
-  // Empty path selects root element.
-  // Non-negative index N selects (N+1)-th child.
-  // Index -1 selects root element from frame content document.
-  repeated int32 index = 1;
-};