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

components/safe_browsing/renderer/threat_dom_details.cc

Index: components/safe_browsing/renderer/threat_dom_details.cc
diff --git a/components/safe_browsing/renderer/threat_dom_details.cc b/components/safe_browsing/renderer/threat_dom_details.cc
index c3d712b38a78516a219e4e7d165a303a23affc6c..9fd9af5a18642c10cdc3a06f644f0a3bdc4779b3 100644
--- a/components/safe_browsing/renderer/threat_dom_details.cc
+++ b/components/safe_browsing/renderer/threat_dom_details.cc
@@ -16,6 +16,7 @@
 #include "base/strings/stringprintf.h"
 #include "components/safe_browsing/common/safebrowsing_messages.h"
 #include "components/safe_browsing/common/safebrowsing_types.h"
+#include "components/safe_browsing/features.h"
 #include "content/public/renderer/render_frame.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
@@ -35,15 +36,6 @@ namespace safe_browsing {
 // messages generated by ThreatDOMDetails.
 using ElementToNodeMap = std::map<blink::WebNode, size_t>;
 
-// This Feature specifies which non-resource HTML Elements to collect based on
-// their tag and attributes. It's a single param containing a comma-separated
-// list of pairs. For example: "tag1,id,tag1,height,tag2,foo" - this will
-// collect elements with tag "tag1" that have attribute "id" or "height" set,
-// and elements of tag "tag2" if they have attribute "foo" set. All tag names
-// and attributes should be lower case.
-const base::Feature kThreatDomDetailsTagAndAttributeFeature{
-    "ThreatDomDetailsTagAttributes", base::FEATURE_DISABLED_BY_DEFAULT};
-
 // The name of the param containing the tags and attributes list.
 const char kTagAndAttributeParamName[] = "tag_attribute_csv";