Split up trace_event.h into trace_event_impl.h and add webkitplatform support.

webkit/glue/webkitplatformsupport_impl.h

Index: webkit/glue/webkitplatformsupport_impl.h
diff --git a/webkit/glue/webkitplatformsupport_impl.h b/webkit/glue/webkitplatformsupport_impl.h
index 02a7266933f3b10a801aeea3cc8b412ec154cd9f..c3cee3f993a50958dd4ddb00ce4f8648bcb267a0 100644
--- a/webkit/glue/webkitplatformsupport_impl.h
+++ b/webkit/glue/webkitplatformsupport_impl.h
@@ -73,6 +73,27 @@ class WEBKIT_GLUE_EXPORT WebKitPlatformSupportImpl :
   virtual bool isTraceEventEnabled() const;
   virtual void traceEventBegin(const char* name, void* id, const char* extra);
   virtual void traceEventEnd(const char* name, void* id, const char* extra);
+  virtual const unsigned char* getCategoryEnabled(const char* category_name);
+  virtual int addTraceEvent(
+      char phase,
+      const unsigned char* category_enabled,
+      const char* name,
+      unsigned long long id,
+      int num_args,
+      const char** arg_names,
+      const unsigned char* arg_types,
+      const unsigned long long* arg_values,
+      int threshold_begin_id,
+      long long threshold,
+      unsigned char flags);
+  virtual void addCounterEvent(

[nduca, 2012/01/13 22:40:41]

Er, before this, is there any hope of folding counters into addTraceEvent? I
would have expected the arg_types refactoring stuff to have fixed the issue that
prevented me from using it originally [though I've forgotten what the issue was,
tbh]

[jbates, 2012/01/13 23:56:03]

Done.

+      const unsigned char* category_enabled,
+      const char* name,
+      unsigned long long id,
+      const char* arg1_name, int arg1_val,
+      const char* arg2_name, int arg2_val,
+      unsigned char flags);
+  virtual unsigned long long getInterProcessID(void* pointer);
   virtual WebKit::WebData loadResource(const char* name);
   virtual bool loadAudioResource(
       WebKit::WebAudioBus* destination_bus, const char* audio_file_data,