Rephrase some of the media galleries permission information.

chrome/common/extensions/docs/static/mediaGalleries.html

Index: chrome/common/extensions/docs/static/mediaGalleries.html
diff --git a/chrome/common/extensions/docs/static/mediaGalleries.html b/chrome/common/extensions/docs/static/mediaGalleries.html
index fc03902faab5afa56fd5bde91c1f6992e00491d5..d7fcb880b640797950b957276f907f615bc38cd9 100644
--- a/chrome/common/extensions/docs/static/mediaGalleries.html
+++ b/chrome/common/extensions/docs/static/mediaGalleries.html
@@ -15,10 +15,12 @@ locations, only media files will be present in the file system objects.
 
 <h2 id="manifest">Manifest</h2>
 <p>You must declare the type of access to the media gallery you require
-in your extension's manifest to use the API.  Currently only the
-"mediaGalleriesRead" permission is allowed.  This permission does not
-currently trigger an install time permission prompt because it requires
-the user to grant permission at runtime.</p>
+in your extension's manifest to use the API.  Currently the only access
+type permission is "mediaGalleriesRead," which will allow your extension
+to read from the media galleries.  This permission does not trigger an
+install time permission prompt because the user must still grant access
+to particular galleries at runtime unless the "mediaGalleriesAllGalleries"
+permission is used.</p>

[battre, 2012/07/31 21:34:15]

So do you need to request both "mediaGalleriesRead" and
"mediaGalleriesAllGalleries"?

[vandebo (ex-Chrome), 2012/07/31 21:36:06]

To get default access to all well known galleries, yes.  If you only request
"mediaGalleriesRead" then you will start with no access to galleries and will
have to use the runtime dialog to have the user grant permission.

[battre, 2012/07/31 21:47:18]

Sorry, let me phrase this differently. Do you have read access if you specify
*only* "mediaGalleriesAllGalleries"? Or "Does mediaGalleriesAllGalleries subsume
mediaGalleriesRead"?

 
 <p>
 You may also specify the "mediaGalleriesAllGalleries" permission to get