Bug 1276438 part 4. Move the .body getter from HTMLDocument to Docume…

…nt. r=mystor

The "body" part of responsexml-document-properties.htm is not really per current
spec text, and fails in every non-Firefox browser, and in Firefox after this
change.  web-platform-tests/wpt#2668 tracks this issue
to some extent, but if all browsers are going to align here anyway, we should
just adjust the test and move on.

MozReview-Commit-ID: HTLfggvi5LL

UltraBlame original commit: d6b890b102b7197415317b0966e6a5c636fd5f57

dom/bindings/test/test_bug560072.html

@@ -219,7 +219,7 @@
 .
 getOwnPropertyDescriptor
 (
-HTMLDocument
+Document
 .
 prototype
 "
@@ -257,8 +257,13 @@
 .
 getPrototypeOf
 (
+Object
+.
+getPrototypeOf
+(
 document
 )
+)
 "
 body
 "

dom/webidl/Document.webidl

@@ -91,31 +91,46 @@ MPL
 .
 *
 *
-http
+https
 :
 /
 /
-dxr
+dom
 .
-mozilla
+spec
+.
+whatwg
 .
 org
 /
-mozilla
+#
+interface
 -
-central
-/
-source
+document
+*
+https
+:
 /
-dom
 /
-interfaces
+html
+.
+spec
+.
+whatwg
+.
+org
 /
-core
+multipage
 /
-nsIDOMDocument
+dom
 .
-idl
+html
+#
+the
+-
+document
+-
+object
 *
 /
 interface
@@ -180,7 +195,7 @@ pseudo
 ;
 /
 *
-http
+https
 :
 /
 /
@@ -686,26 +701,23 @@ allowUnsafeHTML
 ;
 /
 /
-http
+https
 :
 /
 /
-www
+html
+.
+spec
 .
 whatwg
 .
 org
 /
-specs
-/
-web
--
-apps
-/
-current
--
-work
+multipage
 /
+dom
+.
+html
 #
 the
 -
@@ -799,12 +811,11 @@ attribute
 DOMString
 dir
 ;
-/
-/
-(
-HTML
-only
-)
+[
+CEReactions
+Pure
+SetterThrows
+]
 attribute
 HTMLElement
 ?

dom/webidl/HTMLDocument.webidl

@@ -130,16 +130,6 @@ name
 )
 ;
 [
-CEReactions
-Pure
-SetterThrows
-]
-attribute
-HTMLElement
-?
-body
-;
-[
 Pure
 ]
 readonly