Do not send pings for anchor elements in MHTML pages

third_party/WebKit/Source/web/tests/WebFrameSerializerTest.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 285 matching lines @@
 
   // These non-scripting attributes should remain intact.
   EXPECT_NE(WTF::kNotFound, mhtml.Find("class="));
   EXPECT_NE(WTF::kNotFound, mhtml.Find("id="));
 
   // srcdoc attribute of frame element should be replaced with src attribute.
   EXPECT_EQ(WTF::kNotFound, mhtml.Find("srcdoc="));
   EXPECT_NE(WTF::kNotFound, mhtml.Find("src="));
 }
 
+TEST_F(WebFrameSerializerSanitizationTest, RemoveOtherAttributes) {
+  String mhtml =
+      GenerateMHTMLFromHtml("http://www.test.com", "remove_attributes.html");
+  EXPECT_EQ(WTF::kNotFound, mhtml.Find("ping="));
+}
+
 TEST_F(WebFrameSerializerSanitizationTest, DisableFormElements) {
   String mhtml = GenerateMHTMLFromHtml("http://www.test.com", "form.html");
 
   const char kDisabledAttr[] = "disabled=3D\"\"";
   int matches =
       MatchSubstring(mhtml, kDisabledAttr, arraysize(kDisabledAttr) - 1);
   EXPECT_EQ(21, matches);
 }
 
 TEST_F(WebFrameSerializerSanitizationTest, RemoveHiddenElements) {
@@ skipping 126 matching lines @@
             mhtml.Find("<meta http-equiv=3D\"Content-Security-Policy"));
   EXPECT_NE(WTF::kNotFound, mhtml.Find("<meta name=3D\"description"));
   EXPECT_NE(WTF::kNotFound, mhtml.Find("<meta http-equiv=3D\"refresh"));
 
   // If an element is removed, its children should also be skipped.
   EXPECT_EQ(WTF::kNotFound, mhtml.Find("<select"));
   EXPECT_EQ(WTF::kNotFound, mhtml.Find("<option"));
 }
 
 }  // namespace blink