Adding build-time option to enable the tracing of skia events in

skia/skia.gyp

Index: skia/skia.gyp
===================================================================
--- skia/skia.gyp	(revision 129170)
+++ skia/skia.gyp	(working copy)
@@ -721,6 +721,7 @@
         'ext/SkMemory_new_handler.cpp',
         'ext/skia_sandbox_support_win.h',
         'ext/skia_sandbox_support_win.cc',
+        'ext/skia_trace_shim.h',
         'ext/skia_utils_mac.mm',
         'ext/skia_utils_mac.h',
         'ext/skia_utils_win.cc',
@@ -759,6 +760,12 @@
         'SK_DISABLE_FAST_AA_STROKE_RECT',
         'SK_DEFAULT_FONT_CACHE_LIMIT=(20*1024*1024)',
 
+        # tracing of skia events is disabled by default. To enable
+        # tracing for your build, comment-out the line
+        # #undef SK_USER_TRACE_INCLUDE_FILE
+        # in file config/SkUserConfig.h
+        'SK_USER_TRACE_INCLUDE_FILE="skia/ext/skia_trace_shim.h"',

[senorblanco, 2012/04/02 20:49:12]

I'd prefer to do this all in one place, not in two.  Having the SkUserConfig.h
#undef this after the gyp file sets it is kind of weird.  I'd rather it be in
the SkUserConfig.h, in the chrome-specific block at the bottom.  You can just
put the #define there, commented out.

+
         # temporary for landing Skia rev 3077 with minimal layout test breakage
         'SK_SIMPLE_TWOCOLOR_VERTICAL_GRADIENTS',