Merge 147143 - Makes dialog print on ENTER key press.

chrome/browser/resources/print_preview/print_preview.js

Index: chrome/browser/resources/print_preview/print_preview.js
===================================================================
--- chrome/browser/resources/print_preview/print_preview.js	(revision 147897)
+++ chrome/browser/resources/print_preview/print_preview.js	(working copy)
@@ -651,6 +651,14 @@
         }
       }
 
+      if (e.keyCode == 13 /*enter*/ && this.printTicketStore_.isTicketValid()) {
+        assert(this.uiState_ == PrintPreview.UiState_.READY,
+          'Trying to print when not in ready state: ' + this.uiState_);
+        this.printDocumentOrOpenPdfPreview_(false /*isPdfPreview*/);
+        e.preventDefault();
+        return;
+      }
+
       // Pass certain directional keyboard events to the PDF viewer.
       this.previewArea_.handleDirectionalKeyEvent(e);
     },