[Startup Tracing] Hook up TraceConfig and remove CategoryFilter & TraceOptions

base/trace_event/trace_event_impl_constants.cc

Index: base/trace_event/trace_event_impl_constants.cc
diff --git a/base/trace_event/trace_event_impl_constants.cc b/base/trace_event/trace_event_impl_constants.cc
index 930d52fc7712f90de3d9fefd95cd389fe292bacc..b7f3b4c4a2e5c7108b768d36d92d9eacbe6fecf1 100644
--- a/base/trace_event/trace_event_impl_constants.cc
+++ b/base/trace_event/trace_event_impl_constants.cc
@@ -7,9 +7,6 @@
 namespace base {
 namespace trace_event {
 
-// Enable everything but debug and test categories by default.
-const char CategoryFilter::kDefaultCategoryFilterString[] = "-*Debug,-*Test";
-
 // Constant used by TraceLog's internal implementation of trace_option.
 const TraceLog::InternalTraceOptions
     TraceLog::kInternalNone = 0;