Replace TraceEvent.begin()/end() with explicit names

Replace TraceEvent.begin()/end() calls which implicitly gets the trace
event name by doing a costly stack dump, with explicitly named trace
event names.

Also wrap traces around try/finally.

Chromium crbug.com/439118

Change-Id: Iec15663bba1da76049e9ee99e9df437ae33f59d5
1 file changed
tree: 35900500244e33ddf0db920eef1507cca218ee19
  1. chromium/
  2. nullwebview/
  3. Android.mk