Move standardized document methods to w3c_dom1.js and remove useless …

…overrides of same methods by HTMLDocument

The open(...), close(), write(...) and writeln(...) methods on Document are
now part of the standard and have been moved to w3c_dom1.js to reflect this.

The typing of Document.prototype.open and Document.prototype.close was
previously incomplete. These have been aligned with the specification
and with the methods in HTMLDocument that overrode these methods. This
may impact type checking but that would be very surprising.

The overrides in HTMLDocument have been removed. This is done due to
limitations of the jsinterop-generator tool that is more fully described
in google/jsinterop-generator#35 While the specifications explicitly
indicate that these overrides are present and annotates (requiring the
[OverrideBuiltins] attribute be applied to the containing interface in
WebIDL) it is not expected that this has any practical impact on programs
type checking against the externs.

externs/browser/gecko_dom.js

@@ -301,11 +301,6 @@ Document.prototype.vlinkColor;
  */
 Document.prototype.clear = function() {};
 
-/**
- * @see https://developer.mozilla.org/en/DOM/document.close
- */
-Document.prototype.close;
-
 /**
  * @param {string} type
  * @return {Event}
@@ -340,11 +335,6 @@ Document.prototype.getElementsByClassName = function(name) {};
 Document.prototype.load = function(uri) {};
 Document.prototype.loadOverlay;
 
-/**
- * @see https://developer.mozilla.org/en/DOM/document.open
- */
-Document.prototype.open;
-
 /**
  * @see https://developer.mozilla.org/en/Midas
  * @see http://msdn.microsoft.com/en-us/library/ms536676(VS.85).aspx
@@ -377,20 +367,6 @@ Document.prototype.queryCommandSupported;
  */
 Document.prototype.queryCommandValue;
 
-/**
- * @see https://developer.mozilla.org/en/DOM/document.write
- * @param {!TrustedHTML|string} text
- * @return {undefined}
- */
-Document.prototype.write = function(text) {};
-
-/**
- * @see https://developer.mozilla.org/en/DOM/document.writeln
- * @param {!TrustedHTML|string} text
- * @return {undefined}
- */
-Document.prototype.writeln = function(text) {};
-
 Document.prototype.ononline;
 Document.prototype.onoffline;
 

externs/browser/w3c_dom1.js

@@ -422,6 +422,34 @@ Document.prototype.createTextNode = function(data) {};
  */
 Document.prototype.getElementsByTagName = function(tagname) {};
 
+/**
+ * @param {string=} opt_unused1
+ * @param {string=} opt_unused2
+ * @return {undefined}
+ * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-document-open
+ */
+Document.prototype.open = function(opt_unused1, opt_unused2) {};
+
+/**
+ * @return {undefined}
+ * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-document-close
+ */
+Document.prototype.close = function() {};
+
+/**
+ * @param {!TrustedHTML|string} text
+ * @return {undefined}
+ * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-document-write
+ */
+Document.prototype.write = function(text) {};
+
+/**
+ * @param {!TrustedHTML|string} text
+ * @return {undefined}
+ * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-document-writeln
+ */
+Document.prototype.writeln = function(text) {};
+
 /**
  * @constructor
  * @implements {IArrayLike<T>}

externs/browser/w3c_dom2.js

@@ -239,40 +239,6 @@ HTMLDocument.prototype.anchors;
  */
 HTMLDocument.prototype.cookie;
 
-/**
- * @param {string=} opt_mimeType
- * @param {string=} opt_replace
- * @return {undefined}
- * @see http://www.w3.org/TR/2000/CR-DOM-Level-2-20000510/html.html#ID-72161170
- * Even though official spec says "no parameters" some old browsers might take
- * optional parameters: https://msdn.microsoft.com/en-us/library/ms536652(v=vs.85).aspx
- * @override
- */
-HTMLDocument.prototype.open = function(opt_mimeType, opt_replace) {};
-
-/**
- * @return {undefined}
- * @see http://www.w3.org/TR/2000/CR-DOM-Level-2-20000510/html.html#ID-98948567
- * @override
- */
-HTMLDocument.prototype.close = function() {};
-
-/**
- * @param {!TrustedHTML|string} text
- * @return {undefined}
- * @see http://www.w3.org/TR/2000/CR-DOM-Level-2-20000510/html.html#ID-75233634
- * @override
- */
-HTMLDocument.prototype.write = function(text) {};
-
-/**
- * @param {!TrustedHTML|string} text
- * @return {undefined}
- * @see http://www.w3.org/TR/2000/CR-DOM-Level-2-20000510/html.html#ID-35318390
- * @override
- */
-HTMLDocument.prototype.writeln = function(text) {};
-
 /**
  * @param {string} elementName
  * @return {!NodeList<!Element>}