Run Cronet perf test on Cronet bot

scripts/slave/recipes/cronet.py

Index: scripts/slave/recipes/cronet.py
diff --git a/scripts/slave/recipes/cronet.py b/scripts/slave/recipes/cronet.py
index bbcf628f4bc2180752637be794757d2d0e89aeec..f4a54d2f5f2d230868a62fce2282f9403ba2617e 100644
--- a/scripts/slave/recipes/cronet.py
+++ b/scripts/slave/recipes/cronet.py
@@ -5,6 +5,7 @@
 from infra.libs.infra_types import freeze
 
 DEPS = [
+  'chromium',
   'cronet',
   'path',
   'properties',
@@ -39,6 +40,7 @@ BUILDERS = freeze({
   'Android Cronet Builder': {
     'recipe_config': 'main_builder',
     'run_tests': True,
+    'run_perf_tests': True,
     'kwargs': {
       'BUILD_CONFIG': 'Release',
       'REPO_NAME': 'src',
@@ -140,6 +142,21 @@ def RunSteps(api):
     api.cronet.sizes(cronet_kwargs['PERF_ID'])
   if builder_config['run_tests']:
     api.cronet.run_tests(kwargs['BUILD_CONFIG'])
+  if 'run_perf_tests' in builder_config and builder_config['run_perf_tests']:

[xunjieli, 2015/08/17 14:58:05]

Why do we run perf tests only on "Android Cronet Builder"? Should the other bots
with "run_tests = True" also run perf tests?

+    # Before running the perf test, build quic_server and quic_client for this
+    # host machine.
+    api.chromium.set_config('chromium')
+    # Make sure not to clobber all the Cronet binaries that were just built.
+    # Landmines are very target dependent so they'll likely be different
+    # between android and linux, so running runhooks now would make them go off.
+    # Prevent clobbering by clearing landmines that would otherwise go off
+    # when runhooks is run. It's safe to ignore landmines now because we just
+    # did a clobber build.
+    api.cronet.clear_landmines()
+    api.chromium.runhooks()

[xunjieli, 2015/08/17 14:58:05]

Suggest adding a name argument here, so it's clearer what this is for.
e.g. 
api.chromium.runhooks(name='runhooks for compiling quic server and client')

+    api.chromium.compile(targets=['quic_server', 'quic_client'])
+
+    api.cronet.run_perf_tests()
 
 
 def _sanitize_nonalpha(text):