Initialize devil_chromium when in chromium checkout.

telemetry/telemetry/internal/util/binary_manager.py

Index: telemetry/telemetry/internal/util/binary_manager.py
diff --git a/telemetry/telemetry/internal/util/binary_manager.py b/telemetry/telemetry/internal/util/binary_manager.py
index c4d17678bb5ea5c9fc83f30554504c295d624e15..c2c17ffe3c25b87373809902ec22aeb4fdc3f277 100644
--- a/telemetry/telemetry/internal/util/binary_manager.py
+++ b/telemetry/telemetry/internal/util/binary_manager.py
@@ -14,6 +14,7 @@ from telemetry.core import exceptions
 from telemetry.core import util
 from telemetry.core import platform as platform_module
 
+import sys
 
 TELEMETRY_PROJECT_CONFIG = os.path.join(
     util.GetTelemetryDir(), 'telemetry', 'internal', 'binary_dependencies.json')
@@ -50,6 +51,13 @@ def InitDependencyManager(client_configs):
   configs += [TELEMETRY_PROJECT_CONFIG, CHROME_BINARY_CONFIG]
   _binary_manager = binary_manager.BinaryManager(configs)
 
+  if "devil_chromium" in sys.modules:
+    for chromium_out_dir in util.GetBuildDirectories():
+      if os.path.exists(chromium_out_dir):
+        # pylint: disable=undefined-variable
+        devil_chromium.Initialize(output_directory=chromium_out_dir)
+        break
+
   devil_env.config.Initialize()