Rename the thumbnail_view.js file

web/pdf_thumbnail_viewer.js

@@ -21,7 +21,7 @@
 
 var THUMBNAIL_SCROLL_MARGIN = -19;
 
-//#include thumbnail_view.js
+//#include pdf_thumbnail_view.js
 
 /**
  * @typedef {Object} PDFThumbnailViewerOptions

web/viewer.html

@@ -73,7 +73,7 @@ http://sourceforge.net/adobe/cmap/wiki/License/
     <script src="text_layer_builder.js"></script>
     <script src="annotations_layer_builder.js"></script>
     <script src="pdf_viewer.js"></script>
-    <script src="thumbnail_view.js"></script>
+    <script src="pdf_thumbnail_view.js"></script>
     <script src="pdf_thumbnail_viewer.js"></script>
     <script src="document_outline_view.js"></script>
     <script src="document_attachments_view.js"></script>