Oilpan: Correctly scope TRACE_EVENT macros in Heap.cpp
Oilpan: Correctly scope TRACE_EVENT macros in Heap.cpp

BUG=340522

Review URL: https://codereview.chromium.org/627173004

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@183244 bbb929c8-8fbe-4397-9dbb-9b2b20218538

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk