Instrument HTTP client requests to buildbucket

scripts/master/buildbucket/client.py

Index: scripts/master/buildbucket/client.py
diff --git a/scripts/master/buildbucket/client.py b/scripts/master/buildbucket/client.py
index 6d476ef722629130ee3570241cf7fd83ac3c1786..cf5e7bab50f47468a48f2d822763dccf7893fe84 100644
--- a/scripts/master/buildbucket/client.py
+++ b/scripts/master/buildbucket/client.py
@@ -13,7 +13,8 @@ from master import auth
 from master import deferred_resource
 from master.buildbucket import common
 import apiclient
-import httplib2
+
+from infra_libs import InstrumentedHttp
 
 BUILDBUCKET_HOSTNAME_PRODUCTION = 'cr-buildbucket.appspot.com'
 BUILDBUCKET_HOSTNAME_TESTING = 'cr-buildbucket-test.appspot.com'
@@ -48,7 +49,7 @@ def create_buildbucket_service(master, hostname=None, verbose=None):
   # https://chromium.googlesource.com/chromium/tools/build/+/08b404f/third_party/google_api_python_client/googleapiclient/discovery.py#146
   # https://chromium.googlesource.com/chromium/tools/build/+/08b404f/third_party/google_api_python_client/googleapiclient/discovery.py#218
   resource = apiclient.discovery.Resource(
-      http=httplib2.Http(),
+      http=InstrumentedHttp('buildbucket'),
       # Note that this does not include _ah/ in URL path, which means
       # we bypass Cloud Endpoints proxy server. See also:
       # https://bugs.chromium.org/p/chromium/issues/detail?id=626650