Refactor trace_event_impl's SetEnabled to use TraceOptions. Propagate this through the whole stack.

content/browser/tracing/trace_message_filter.h

Index: content/browser/tracing/trace_message_filter.h
diff --git a/content/browser/tracing/trace_message_filter.h b/content/browser/tracing/trace_message_filter.h
index 4233fe04480117f81c1f320de365f33d5408b450..95e302ca2c9c83956305abf6bace31ea82a72af4 100644
--- a/content/browser/tracing/trace_message_filter.h
+++ b/content/browser/tracing/trace_message_filter.h
@@ -25,10 +25,10 @@ class TraceMessageFilter : public BrowserMessageFilter {
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   void SendBeginTracing(const std::string& category_filter_str,
-                        base::debug::TraceLog::Options options);
+                        base::debug::TraceOptions options);
   void SendEndTracing();
   void SendEnableMonitoring(const std::string& category_filter_str,
-                            base::debug::TraceLog::Options options);
+                            base::debug::TraceOptions options);
   void SendDisableMonitoring();
   void SendCaptureMonitoringSnapshot();
   void SendGetTraceBufferPercentFull();