Add some perftests to Win7 Intel GPU perf bot.

tools/perf/generate_perf_json.py

 #!/usr/bin/env python
 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Script to generate chromium.perf.json and chromium.perf.fyi.json in
 the src/testing/buildbot directory. Maintaining these files by hand is
 too unwieldy.
 """
 
@@ skipping 310 matching lines @@
   waterfall = add_tester(
     waterfall, 'Win 7 Intel GPU Perf',
     'chromium-rel-win7-gpu-intel', 'win',
     swarming=[
       {
        'gpu': '8086:041a',
        'os': 'Windows-2008ServerR2-SP1',
        'device_ids': [
            'build164-m1', 'build165-m1',
            'build166-m1', 'build167-m1', 'build168-m1'
-          ]
+          ],
+       'perf_tests': [
+         ('angle_perftests', 2),
+         ('load_library_perf_tests', 2),
+         ('performance_browser_tests', 2)]
       }
     ])
   waterfall = add_tester(
     waterfall, 'Win 7 Nvidia GPU Perf',
     'chromium-rel-win7-gpu-nvidia', 'win',
     swarming=[
       {
        'gpu': '10de:104a',
        'os': 'Windows-2008ServerR2-SP1',
        'device_ids': [
@@ skipping 404 matching lines @@
   waterfall['name'] = 'chromium.perf'
   fyi_waterfall = get_fyi_waterfall_config()
   fyi_waterfall['name'] = 'chromium.perf.fyi'
 
   generate_all_tests(fyi_waterfall)
   generate_all_tests(waterfall)
   return 0
 
 if __name__ == '__main__':
   sys.exit(main())