Added experiments section and exported the list of SafeBrowsing features in WebUI

components/safe_browsing/renderer/threat_dom_details.h

 // Copyright (c) 2012 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.
 //
 // ThreatDOMDetails iterates over a document's frames and gathers
 // interesting URLs such as those of scripts and frames. When done, it sends
 // them to the ThreatDetails that requested them.
 
 #ifndef COMPONENTS_SAFE_BROWSING_RENDERER_THREAT_DOM_DETAILS_H_
 #define COMPONENTS_SAFE_BROWSING_RENDERER_THREAT_DOM_DETAILS_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/feature_list.h"
 #include "content/public/renderer/render_frame_observer.h"
 
 struct SafeBrowsingHostMsg_ThreatDOMDetails_Node;
 
 namespace safe_browsing {
 
-extern const base::Feature kThreatDomDetailsTagAndAttributeFeature;
 extern const char kTagAndAttributeParamName[];
 
 // Represents the tag name of an HTML Element and its associated attributes.
 // Used to determine which elements to collect. Populated from the param value
 // of |kThreatDomDetailsTagAndAttributeFeature|.
 class TagAndAttributesItem {
  public:
   TagAndAttributesItem();
   TagAndAttributesItem(const TagAndAttributesItem& item);
   ~TagAndAttributesItem();
@@ skipping 39 matching lines @@
   // A list of tag names and associates attributes, used to determine which
   // elements need to be collected.
   std::vector<TagAndAttributesItem> tag_and_attributes_list_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreatDOMDetails);
 };
 
 }  // namespace safe_browsing
 
 #endif  // COMPONENTS_SAFE_BROWSING_RENDERER_THREAT_DOM_DETAILS_H_