[tools/chrome_proxy] Update inspector_network data collecting code to trace_data.AddTraceFor

The API trace_data.AddEventsTo is replaced by trace_data.AddTraceFor in
https://codereview.chromium.org/2619073002/

BUG=catapult:#3119
TBR=bustamante@chromium.org

Review-Url: https://codereview.chromium.org/2630193002
Cr-Commit-Position: refs/heads/master@{#443817}

tools/chrome_proxy/common/inspector_network.py

diff --git a/tools/chrome_proxy/common/inspector_network.py b/tools/chrome_proxy/common/inspector_network.py
index af0e39bb..8f4d463 100644
--- a/tools/chrome_proxy/common/inspector_network.py
+++ b/tools/chrome_proxy/common/inspector_network.py
@@ -291,5 +291,5 @@
     if len(events) == 0:
       return None
     builder = trace_data.TraceDataBuilder()
-    builder.AddEventsTo(trace_data.INSPECTOR_TRACE_PART, events)
+    builder.AddTraceFor(trace_data.INSPECTOR_TRACE_PART, events)
     return model.TimelineModel(builder.AsData(), shift_world_to_zero=False)