Emit resize events after making document changes during inline editing

Summary:
Ref T12634. Fixes T12633. These events allow the keyboard reticle to resize properly.

(I expect to possibly hide/disable the reticle in the future during edits, but at least make the behavior sensible for now.)

Test Plan:
  - Used "n" to select a block.
  - Clicked a line number in that block to start a new inline comment.
  - Saw reticle resize properly.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12634, T12633

Differential Revision: https://secure.phabricator.com/D17904

webroot/rsrc/js/application/diff/DiffInline.js

@@ -438,6 +438,8 @@ JX.install('DiffInline', {
         row = next_row;
       }
 
+      JX.Stratcom.invoke('resize');
+
       return first_meta;
     },
 
@@ -516,6 +518,10 @@ JX.install('DiffInline', {
       // After making changes to inline comments, refresh the transaction
       // preview at the bottom of the page.
       this.getChangeset().getChangesetList().redrawPreview();
+
+      // Emit a resize event so that UI elements like the keyboad focus
+      // reticle can redraw properly.
+      JX.Stratcom.invoke('resize');
     },
 
     _redraw: function() {