SuperSize: Add upload bash snippet to html_report

Bug: 1007516
Change-Id: I78e65968c63d9665dc4e77756b863b2fdfe74e6a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1824017Reviewed-by: Samuel Huang <huangs@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Auto-Submit: Jasper Chapman-Black <jaspercb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#699805}

tools/binary_size/libsupersize/html_report.py

@@ -4,12 +4,15 @@
 
 """Creates an html report that allows you to view binary size by component."""
 
+from __future__ import print_function
+
 import codecs
 import collections
 import itertools
 import json
 import logging
 import os
+import uuid
 
 import archive
 import diff
@@ -281,13 +284,21 @@ def Run(args, parser):
   BuildReportFromSizeInfo(
       args.output_report_file, size_info, all_symbols=args.all_symbols)
 
+  logging.warning('Done!')
   msg = [
-      'Done!',
       'View using a local server via: ',
-      '    %s start_server %s',
-      'or upload to the hosted version here:',
+      '    {0} start_server {1}',
+      'or run:',
+      '    gsutil.py cp -a public-read {1} gs://chrome-supersize/oneoffs/'
+      '{2}.ndjson',
+      '  to view at:',
       '    https://storage.googleapis.com/chrome-supersize/viewer.html'
-      ]
+      '?load_url=oneoffs/{2}.ndjson',
+  ]
   supersize_path = os.path.relpath(os.path.join(
       path_util.SRC_ROOT, 'tools', 'binary_size', 'supersize'))
-  logging.warning('\n'.join(msg),  supersize_path, args.output_report_file)
+  # Use a random UUID as the filename so user can copy-and-paste command
+  # directly without a name collision.
+  upload_id = uuid.uuid4()
+  print('\n'.join(msg).format(supersize_path, args.output_report_file,
+                              upload_id))