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

webkit/glue/webkitplatformsupport_impl.cc

Index: webkit/glue/webkitplatformsupport_impl.cc
diff --git a/webkit/glue/webkitplatformsupport_impl.cc b/webkit/glue/webkitplatformsupport_impl.cc
index 91280b10af4d6464b9d3b87902fae3a2a2e0db91..3f1caddfd92ac8d7d764e09d0d349c101cc81108 100644
--- a/webkit/glue/webkitplatformsupport_impl.cc
+++ b/webkit/glue/webkitplatformsupport_impl.cc
@@ -305,6 +305,44 @@ void WebKitPlatformSupportImpl::traceEventEnd(const char* name, void* id,
   TRACE_EVENT_END_ETW(name, id, extra);
 }
 
+const unsigned char* WebKitPlatformSupportImpl::getCategoryEnabled(
+    const char* category_name) {
+  return TRACE_EVENT_API_GET_CATEGORY_ENABLED(category_name);
+}
+
+int WebKitPlatformSupportImpl::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) {
+  return TRACE_EVENT_API_ADD_TRACE_EVENT(phase, category_enabled, name, id,
+                                         num_args, arg_names, arg_types,
+                                         arg_values, threshold_begin_id,
+                                         threshold, flags);
+}
+
+void WebKitPlatformSupportImpl::addCounterEvent(
+    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) {
+  TRACE_EVENT_API_ADD_COUNTER_EVENT(category_enabled, name, id, arg1_name,
+                                    arg1_val, arg2_name, arg2_val, flags);
+}
+
+unsigned long long WebKitPlatformSupportImpl::getInterProcessID(void* pointer) {

[darin (slow to review), 2012/01/13 22:37:12]

Is it necessary for the WebKit API to talk about "inter-process" stuff?  Can
this be more generic from the point of view of WebKit?

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

manglePointerForTracing?

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

Done.

+  return TRACE_EVENT_API_GET_ID_FROM_POINTER(pointer);
+}
+
 namespace {
 
 WebData loadAudioSpatializationResource(WebKitPlatformSupportImpl* platform,