Enable tracing perftests on Android bots.

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 58 matching lines @@
           'name': 'Android Nexus7v2 Perf',
           'shards': [2]
         },
         {
           'name': 'Android Nexus9 Perf',
           'shards': [2]
         },
       ],
     }
   },
+  {
+    'args': [
+      'tracing_perftests',
+      '--adb-path',
+      'src/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb',
+    ],
+    'name': 'tracing_perftests',
+    'script': 'gtest_perf_test.py',
+    'testers': {
+      'chromium.perf': [
+        {
+          'name': 'Android Nexus5 Perf',
+          'shards': [2]
+        },
+        {
+          'name': 'Android Nexus6 Perf',
+          'shards': [2]
+        },
+        {
+          'name': 'Android Nexus7v2 Perf',
+          'shards': [2]
+        },
+        {
+          'name': 'Android Nexus9 Perf',
+          'shards': [2]
+        },
+      ]
+    }
+  },
 ]
 
 
 def add_tester(waterfall, name, perf_id, platform, target_bits=64,
               num_host_shards=1, num_device_shards=1, swarming=None,
               use_whitelist=False):
   del perf_id # this will be needed
   waterfall['testers'][name] = {
     'platform': platform,
     'num_device_shards': num_device_shards,
@@ skipping 625 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())