[css-images] Add issue to image-orientation about simplifying or deprecating the property. Add EXIF auto-orientation.

Author: tabatkins

css-images/Overview.bs

@@ -12,7 +12,7 @@ Editor: fantasai, Mozilla, http://fantasai.inkedblade.net/contact
 Abstract: This module contains the features of CSS level 4 relating to the <<image>> type and replaced elements. It includes and extends the functionality of CSS Image Values and Replaced Content Module Level 3. The main extensions compared to level&nbsp;3 are several additions to the <<image>> type, additions to the <<gradient>> type, extentions to the ''image()'' function, definitions for interpolating several <<image>> types, and several properties controlling the interaction of replaced elements and CSS's layout models.
 !Issue Tracking: <a href="http://www.w3.org/Style/CSS/Tracker/products/27">http://www.w3.org/Style/CSS/Tracker/products/27</a>
 Previous Version: http://www.w3.org/TR/2012/WD-css4-images-20120911/
-Ignored Terms: <offset>, background positioning area, border image area, <meetorslice>, <ending-shape>, Map
+Ignored Terms: <offset>, background positioning area, border image area, <meetorslice>, <ending-shape>, Map, <position>
 Link Defaults: css21 (property) display, css-values-3 (type) <position>
 </pre>
 
@@ -181,6 +181,9 @@ Image Fallbacks and Annotations: the ''image()'' notation</h3>
 
 		<li>
 			use a solid color as an image
+
+		<li>
+			automatically respect the image orientation specified in the image's metadata
 	</ul>
 
 	The ''image()'' notation is defined as:
@@ -198,6 +201,11 @@ Image Fallbacks and Annotations: the ''image()'' notation</h3>
 	(as described in Values &amp; Units [[!CSS3VAL]])
 	when a specified ''image()'' value is computed.
 
+	If the image has an orientation specified in its metadata,
+	such as EXIF,
+	the UA must rotate or flip the image to correctly orient it
+	as the metadata specifies.
+
 <h4 id="image-fragments">
 Image Fragments</h4>
 
@@ -2613,6 +2621,9 @@ Overriding Image Resolutions: the 'image-resolution' property</h3>
 <h3 id="the-image-orientation">
 Orienting an Image on the Page: the 'image-orientation' property</h3>
 
+	Issue: This property is likely going to be deprecated and its functionality moved to HTML.
+	At minimum, it will likely lose all but its initial value and ''from-image''.
+
 	If a picture is taken with a camera turned on its side,
 	or a document isn't positioned correctly within a scanner,
 	the resultant image may be "sideways" or even upside-down.