Implement a poor man's PostAfterStartupTask() function.

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index fb5034032e2085bdb551bd929c5420f4eb78b692..786ddbb83a410c3bf6ba9ecaf4a3a93cb4503c19 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -39,6 +39,7 @@
 #include "build/build_config.h"
 #include "cc/base/switches.h"
 #include "chrome/browser/about_flags.h"
+#include "chrome/browser/after_startup_task.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_impl.h"
 #include "chrome/browser/browser_process_platform_part.h"
@@ -1111,6 +1112,8 @@ void ChromeBrowserMainParts::PostBrowserStart() {
       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
       base::TimeDelta::FromMinutes(1));
 #endif  // defined(ENABLE_WEBRTC)
+
+  StartMonitoringStartup();

[gab, 2015/03/30 18:29:37]

Add a comment why this is the right spot for this.

(i.e. browser was started and we can thus tell whether we should be waiting for
something to paint, but nothing can actually have painted yet as the main
message loop hasn't started so begin observation now...)

[michaeln, 2015/04/03 19:51:38]

Done.

 }
 
 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {