gold: force layout diagram

golden/res/imp/detailtable.html

 <!-- The <detail-table-sk> custom element declaration.
 
 Presents detailed information about the differences
 between two images, or just one image if the bothcolumns
 attribute is false.
 
   Attributes:
     top - The top digest.
     left - The left digest.
     test - The name of the test the digests are from.
@@ skipping 301 matching lines @@
           this.getInProgress = false;
 
           var that = this;
           this.$.topDetail.addEventListener('change', function(e) {
             e.stopPropagation();
             var detail = {
               test: that.test,
               digest: [that.top],
               status: e.detail,
             };
-            that.dispatchEvent(new CustomEvent('triage', {detail: detail}));
+            that.dispatchEvent(new CustomEvent('triage', {detail: detail, bubbles: true}));
           });
           this.$.leftDetail.addEventListener('change', function(e) {
             e.stopPropagation();
             var detail = {
               test: that.test,
               digest: [that.left],
               status: e.detail,
             };
-            that.dispatchEvent(new CustomEvent('triage', {detail: detail}));
+            that.dispatchEvent(new CustomEvent('triage', {detail: detail, bubbles: true}));
           });
 
           this.hoverElement = null;
 
           if (this.$.dots) {
             this.$.dots.addEventListener('hover', function(e) {
               that.$.tracename.value = e.detail;
             });
           }
         },
@@ skipping 43 matching lines @@
           this.changeImpl_();
         },
 
         leftChanged: function() {
           this.changeImpl_();
         },
       });
     })();
   </script>
 </polymer-element>