Add the ability to delete patchsets.

appengine/chromium_rietveld/new_static/model/patch_set.js

Index: appengine/chromium_rietveld/new_static/model/patch_set.js
diff --git a/appengine/chromium_rietveld/new_static/model/patch_set.js b/appengine/chromium_rietveld/new_static/model/patch_set.js
index 1333d27267cfeb648bbbd29591b0d6f08cb7e6b6..2d66e63394aa26abd2eac7885b18caf7f7c475fa 100644
--- a/appengine/chromium_rietveld/new_static/model/patch_set.js
+++ b/appengine/chromium_rietveld/new_static/model/patch_set.js
@@ -25,8 +25,9 @@ function PatchSet(issue, id, sequence)
     this.active = false;
 }
 
-PatchSet.DETAIL_URL = "/api/{1}/{2}/?comments=true"
+PatchSet.DETAIL_URL = "/api/{1}/{2}/?comments=true";
 PatchSet.REVERT_URL = "/api/{1}/{2}/revert";
+PatchSet.DELETE_URL = "/{1}/patchset/{2}/delete";
 PatchSet.TITLE_URL = "/{1}/patchset/{2}/edit_patchset_title";
 
 PatchSet.prototype.getDetailUrl = function()
@@ -50,6 +51,13 @@ PatchSet.prototype.getEditTitleUrl = function()
         encodeURIComponent(this.id));
 };
 
+PatchSet.prototype.getDeleteUrl = function()
+{
+    return PatchSet.DELETE_URL.assign(
+        encodeURIComponent(this.issue.id),
+        encodeURIComponent(this.id));
+};
+
 PatchSet.prototype.loadDetails = function()
 {
     var patchset = this;
@@ -94,6 +102,16 @@ PatchSet.prototype.setTitle = function(value)
     });
 };
 
+PatchSet.prototype.delete = function()
+{
+    var patchset = this;
+    return User.loadCurrentUser().then(function(user) {
+        return sendFormData(patchset.getDeleteUrl(), {
+            xsrf_token: user.xsrfToken,
+        });
+    });
+};
+
 PatchSet.prototype.parseData = function(data)
 {
     var patchset = this;