Add TRACE_EVENT macros to net.

net/base/network_delegate.cc

Index: net/base/network_delegate.cc
diff --git a/net/base/network_delegate.cc b/net/base/network_delegate.cc
index 8c23a5329424896f7e637312a22a113f6759d9cd..113b7481478458d50ba6a42f4613bc0c0de69642 100644
--- a/net/base/network_delegate.cc
+++ b/net/base/network_delegate.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "base/profiler/scoped_tracker.h"
+#include "base/trace_event/trace_event.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/proxy/proxy_info.h"
@@ -16,6 +17,8 @@ namespace net {
 int NetworkDelegate::NotifyBeforeURLRequest(
     URLRequest* request, const CompletionCallback& callback,
     GURL* new_url) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::NotifyBeforeURLRequest");
   DCHECK(CalledOnValidThread());
   DCHECK(request);
   DCHECK(!callback.is_null());
@@ -29,6 +32,8 @@ int NetworkDelegate::NotifyBeforeURLRequest(
 int NetworkDelegate::NotifyBeforeSendHeaders(
     URLRequest* request, const CompletionCallback& callback,
     HttpRequestHeaders* headers) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::NotifyBeforeSendHeaders");
   DCHECK(CalledOnValidThread());
   DCHECK(headers);
   DCHECK(!callback.is_null());
@@ -46,6 +51,8 @@ void NetworkDelegate::NotifyBeforeSendProxyHeaders(
 
 void NetworkDelegate::NotifySendHeaders(URLRequest* request,
                                         const HttpRequestHeaders& headers) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::NotifySendHeaders");
   DCHECK(CalledOnValidThread());
   OnSendHeaders(request, headers);
 }
@@ -56,6 +63,8 @@ int NetworkDelegate::NotifyHeadersReceived(
     const HttpResponseHeaders* original_response_headers,
     scoped_refptr<HttpResponseHeaders>* override_response_headers,
     GURL* allowed_unsafe_redirect_url) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::NotifyHeadersReceived");
   DCHECK(CalledOnValidThread());
   DCHECK(original_response_headers);
   DCHECK(!callback.is_null());
@@ -74,6 +83,8 @@ void NetworkDelegate::NotifyResponseStarted(URLRequest* request) {
 
 void NetworkDelegate::NotifyNetworkBytesReceived(URLRequest* request,
                                                  int64_t bytes_received) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::NotifyNetworkBytesReceived");
   DCHECK(CalledOnValidThread());
   DCHECK_GT(bytes_received, 0);
   OnNetworkBytesReceived(request, bytes_received);
@@ -94,6 +105,8 @@ void NetworkDelegate::NotifyBeforeRedirect(URLRequest* request,
 }
 
 void NetworkDelegate::NotifyCompleted(URLRequest* request, bool started) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::NotifyCompleted");
   DCHECK(CalledOnValidThread());
   DCHECK(request);
   // TODO(cbentzel): Remove ScopedTracker below once crbug.com/475753 is fixed.
@@ -103,6 +116,8 @@ void NetworkDelegate::NotifyCompleted(URLRequest* request, bool started) {
 }
 
 void NetworkDelegate::NotifyURLRequestDestroyed(URLRequest* request) {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::NotifyURLRequestDestroyed");
   DCHECK(CalledOnValidThread());
   DCHECK(request);
   OnURLRequestDestroyed(request);
@@ -147,6 +162,8 @@ bool NetworkDelegate::CanAccessFile(const URLRequest& request,
 bool NetworkDelegate::CanEnablePrivacyMode(
     const GURL& url,
     const GURL& first_party_for_cookies) const {
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("net"),
+               "NetworkDelegate::CanEnablePrivacyMode");
   DCHECK(CalledOnValidThread());
   return OnCanEnablePrivacyMode(url, first_party_for_cookies);
 }