Adding profiler markers with MarkerStack::Capture to investigate bug 2051594

bug2051594_profiler_marker_cpp_investigation.diff

diff --git a/uriloader/base/nsDocLoader.cpp b/uriloader/base/nsDocLoader.cpp
index 524451a83e03..6f3e7f7b83fd 100644
--- a/uriloader/base/nsDocLoader.cpp
+++ b/uriloader/base/nsDocLoader.cpp
@@ -42,6 +42,7 @@
 #include "nsIBrowserDOMWindow.h"
 #include "mozilla/ThrottledEventQueue.h"
 #include "mozilla/ClearOnShutdown.h"
+#include "GeckoProfiler.h"
 
 using namespace mozilla;
 using mozilla::DebugOnly;
@@ -802,6 +803,16 @@ void nsDocLoader::DocLoaderIsEmpty(bool aFlushLayout,
       // Update the progress status state - the document is done
       mProgressStateFlags = nsIWebProgressListener::STATE_STOP;
 
+      {
+        nsAutoCString uriString;
+        if (docRequest) {
+          docRequest->GetName(uriString);
+        }
+        PROFILER_MARKER_TEXT("nsDocLoader::DocLoaderIsEmpty (STATE_STOP)",
+                             NETWORK, MarkerOptions(MarkerStack::Capture()),
+                             uriString);
+      }
+
       nsresult loadGroupStatus = NS_OK;
       if (aOverrideStatus) {
         loadGroupStatus = *aOverrideStatus;
@@ -944,7 +955,6 @@ void nsDocLoader::NotifyDoneWithOnload(nsDocLoader* aParent) {
 void nsDocLoader::doStartDocumentLoad(void) {
 #if defined(DEBUG)
   nsAutoCString buffer;
-
   GetURIStringFromRequest(mDocumentRequest, buffer);
   MOZ_LOG(
       gDocLoaderLog, LogLevel::Debug,
@@ -953,6 +963,13 @@ void nsDocLoader::doStartDocumentLoad(void) {
        this, buffer.get()));
 #endif /* DEBUG */
 
+  nsAutoCString uriString;
+  if (mDocumentRequest) {
+    mDocumentRequest->GetName(uriString);
+  }
+  PROFILER_MARKER_TEXT("nsDocLoader::doStartDocumentLoad", NETWORK,
+                       MarkerOptions(MarkerStack::Capture()), uriString);
+
   // Fire an OnStatus(...) notification STATE_START.  This indicates
   // that the document represented by mDocumentRequest has started to
   // load...