mozilla-inbound: changeset 414625:6bec96422fe4ba15e76247e7e8b83e506daf1f6d

author	Emilio Cobos Álvarez <emilio@crisal.io>
	Fri, 20 Apr 2018 03:56:02 +0200
changeset 414625	6bec96422fe4ba15e76247e7e8b83e506daf1f6d
parent 414624	cb757c8237f0ae635266eb247032bf9147eb4e38
child 414626	7549ebecdf7e78e3560382a2b25fddb34c0ba60f
push id	102386
push user	ecoal95@gmail.com
push date	Fri, 20 Apr 2018 01:58:36 +0000
treeherder	mozilla-inbound@6bec96422fe4 [default view] [failures only]
perfherder	[talos] [build metrics] [platform microbench] (compared to previous push)
reviewers	me
bugs	1454233
milestone	61.0a1
first release with	nightly linux32 dd0e54d78674 / 61.0a1 / 20180421100143 / files nightly linux64 dd0e54d78674 / 61.0a1 / 20180421100143 / files nightly mac dd0e54d78674 / 61.0a1 / 20180421100143 / files nightly win32 dd0e54d78674 / 61.0a1 / 20180421100143 / files nightly win64 dd0e54d78674 / 61.0a1 / 20180421100143 / files
last release without	nightly linux32 5d73549d363f / 61.0a1 / 20180419224145 / files nightly linux64 5d73549d363f / 61.0a1 / 20180419224145 / files nightly mac 5d73549d363f / 61.0a1 / 20180419224145 / files nightly win32 5d73549d363f / 61.0a1 / 20180419224145 / files nightly win64 5d73549d363f / 61.0a1 / 20180419224145 / files

--- a/dom/base/nsINode.h
+++ b/dom/base/nsINode.h
@@ -448,16 +448,17 @@ public:
     return IsElement() || IsText();
   }
 
   /**
    * Returns true if this is a document node.
    */
   bool IsDocument() const
   {
+    // One less pointer-chase than checking NodeType().
     return !GetParentNode() && IsInUncomposedDoc();
   }
 
   /**
    * Return this node as a document. Asserts IsDocument().
    *
    * This is defined inline in nsIDocument.h.
    */