run-perf-tests should support --test-results-server option

run-perf-tests should support --test-results-server option
https://bugs.webkit.org/show_bug.cgi?id=76680

Reviewed by Adam Barth.

Add --test-results-server, --builder-name, and --build-number options to run-perf-tests
to be used by perf bots. Also refactor file_uploader as needed.

* Scripts/webkitpy/common/net/file_uploader.py:
(FileUploader.__init__):
(FileUploader.upload_single_file):
(FileUploader.upload_as_multipart_form_data):
(FileUploader):
(FileUploader._upload_data):
(FileUploader._upload_data.callback):
* Scripts/webkitpy/layout_tests/layout_package/json_results_generator.py:
(JSONResultsGeneratorBase.upload_json_files):
* Scripts/webkitpy/performance_tests/perftestsrunner.py:
(PerfTestsRunner):
(PerfTestsRunner._parse_args):
(PerfTestsRunner.run):
(PerfTestsRunner._generate_json):
(PerfTestsRunner._upload_json):
(PerfTestsRunner._run_tests_set):
* Scripts/webkitpy/performance_tests/perftestsrunner_unittest.py:
(create_runner):
(test_run_with_upload_json):
(test_run_with_upload_json.mock_upload_json):
(test_upload_json):
(test_upload_json.MockFileUploader):
(test_upload_json.MockFileUploader.__init__):
(test_upload_json.MockFileUploader.upload_single_file):
(test_parse_args):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@105543 268f45cc-cd09-0410-ab3c-d52691b4dbfc