initial import of Chrome's trace_event into skia framework
This patch includes a modified version of Chrome's trace_event.h, which provides
tracing macros that can easily integrate into the about://tracing framework.
Currently the macros link to a default implementation of the (narrow) tracing
class SkDefaultEventTracer which does nothing; next step will be to have Chrome
subclass the SkEventTracer with a shim that bolts Skia's trace events to its own,
allowing Skia's trace events to show up in about://tracing.
I've verified that this file builds properly, and when I added a simple scoped
TRACE_EVENT0 to SkCanvas::drawRect, along with some debug prints in the NOP
implementation of tracing, I saw what I expected printed to the screen.
BUG=skia:
R=nduca@chromium.org, reed@google.com, mtklein@google.com, bsalomon@google.com
Author: humper@google.com
Review URL: https://codereview.chromium.org/149563004
git-svn-id: http://skia.googlecode.com/svn/trunk@13256 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/core.gypi b/gyp/core.gypi
index fcd5e39..b199868 100644
--- a/gyp/core.gypi
+++ b/gyp/core.gypi
@@ -183,6 +183,7 @@
'<(skia_src_path)/core/SkTileGridPicture.cpp',
'<(skia_src_path)/core/SkTLList.h',
'<(skia_src_path)/core/SkTLS.cpp',
+ '<(skia_src_path)/core/SkTraceEvent.h',
'<(skia_src_path)/core/SkTSearch.cpp',
'<(skia_src_path)/core/SkTSort.h',
'<(skia_src_path)/core/SkTypeface.cpp',