Added code to measure document load times

webshell/tests/viewer/nsBrowserWindow.cpp

@@ -1651,6 +1651,7 @@ nsBrowserWindow::WillLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, nsLoadT
     PRUint32 size;
     mStatus->SetText(url,size);
   }
+  mLoadStartTime = PR_Now();
   return NS_OK;
 }
 
@@ -1679,6 +1680,17 @@ nsBrowserWindow::EndLoadURL(nsIWebShell* aShell,
                             const PRUnichar* aURL,
                             PRInt32 aStatus)
 {
+  PRTime endLoadTime = PR_Now();
+  if (mShowLoadTimes) {
+    nsAutoString msg(aURL);
+    printf("Loading ");
+    fputs(msg, stdout);
+    PRTime delta;
+    LL_SUB(delta, endLoadTime, mLoadStartTime);
+    double usecs;
+    LL_L2D(usecs, delta);
+    printf(" took %g milliseconds\n", usecs / 1000.0);
+  }
   if (mThrobber) {
     mThrobber->Stop();
   }

webshell/tests/viewer/nsBrowserWindow.h

@@ -27,7 +27,7 @@
 #include "nsString.h"
 #include "nsVoidArray.h"
 #include "nsCRT.h"
-//#include "nsIPref.h"
+#include "prtime.h"
 
 #include "nsIXPBaseWindow.h"
 #include "nsPrintSetupDialog.h"
@@ -202,6 +202,10 @@ public:
 
   static void CloseAllWindows();
 
+  void SetShowLoadTimes(PRBool aOn) {
+    mShowLoadTimes = aOn;
+  }
+
   nsViewerApp* mApp;
 
   PRUint32 mChromeMask;
@@ -212,6 +216,9 @@ public:
 
   nsString mOpenFileDirectory;
 
+  PRTime mLoadStartTime;
+  PRBool mShowLoadTimes;
+
   // "Toolbar"
   nsITextWidget* mLocation;
   nsIButton* mBack;