Instrumenting OnExtensionAddListener observer invocation

base/profiler/scoped_profile.h

Index: base/profiler/scoped_profile.h
diff --git a/base/profiler/scoped_profile.h b/base/profiler/scoped_profile.h
index c435a1dea1cd40513c3ec662c33e366f7f9deaf6..a58c9cb3466adbd544c59e8321018d33b822d254 100644
--- a/base/profiler/scoped_profile.h
+++ b/base/profiler/scoped_profile.h
@@ -17,31 +17,16 @@
 #include "base/profiler/tracked_time.h"
 #include "base/tracked_objects.h"
 
-#if defined(GOOGLE_CHROME_BUILD)
-
-// We don't ship these profiled regions.  This is for developer builds only.
-// It allows developers to do some profiling of their code, and see results on
-// their about:profiler page.
-#define TRACK_RUN_IN_THIS_SCOPED_REGION_FOR_DEVELOPER_BUILDS(scope_name)       \
-    ((void)0)
-
-#else
-
-#define TRACK_RUN_IN_THIS_SCOPED_REGION_FOR_DEVELOPER_BUILDS(scope_name)       \
-    ::tracked_objects::ScopedProfile  LINE_BASED_VARIABLE_NAME_FOR_PROFILING(  \
-        FROM_HERE_WITH_EXPLICIT_FUNCTION(#scope_name))
-
-#endif
-
-
-
 #define PASTE_LINE_NUMBER_ON_NAME(name, line) name##line
 
 #define LINE_BASED_VARIABLE_NAME_FOR_PROFILING                                 \
     PASTE_LINE_NUMBER_ON_NAME(some_profiler_variable_, __LINE__)
 
-#define TRACK_RUN_IN_IPC_HANDLER(dispatch_function_name)                       \
-    ::tracked_objects::ScopedProfile some_tracking_variable_name(              \
+// Profiled region. It allows developers to do profiling of their code, and see
+// results on their about:profiler page and in Google-internal server-side
+// tools.

[Ilya Sherman, 2014/09/25 17:28:42]

Optional nit: Suggested rephrasing:

// Defines the containing scope as a profiled region. This allows developers to
// profile their code and see results on their about:profiler page, as well as
// on the UMA dashboard.

[vadimt, 2014/09/25 17:51:02]

Done.

+#define TRACK_RUN_IN_THIS_SCOPED_REGION(dispatch_function_name)                \
+    ::tracked_objects::ScopedProfile LINE_BASED_VARIABLE_NAME_FOR_PROFILING(   \
         FROM_HERE_WITH_EXPLICIT_FUNCTION(#dispatch_function_name))