Implement a poor man's PostAfterStartupTask() function.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index e3ae8430cec806a0579d1fb3054a56e0a57932a8..e94dae39d2635487de1210c4ba5c2c22776c65a0 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -16,15 +16,18 @@
 #include "base/path_service.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
+#include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
+#include "base/time/time.h"
 #include "chrome/browser/browser_about_handler.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/browsing_data/browsing_data_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_remover.h"
 #include "chrome/browser/character_encoding.h"
+#include "chrome/browser/chrome_browser_main.h"
 #include "chrome/browser/chrome_content_browser_client_parts.h"
 #include "chrome/browser/chrome_net_benchmarking_message_filter.h"
 #include "chrome/browser/chrome_quota_permission_context.h"
@@ -808,6 +811,33 @@ content::BrowserMainParts* ChromeContentBrowserClient::CreateBrowserMainParts(
   return main_parts;
 }
 
+namespace {
+
+void PostAfterStartupTaskImpl(
+    const tracked_objects::Location& from_here,
+    const scoped_refptr<base::TaskRunner>& task_runner,
+    const base::Closure& task) {
+  if (!IsBrowserStartupComplete()) {
+    const int kMinDelay = 5;
+    const int kMaxDelay = 30;
+    task_runner->PostDelayedTask(
+        FROM_HERE,
+        base::Bind(PostAfterStartupTaskImpl, from_here, task_runner, task),
+        base::TimeDelta::FromSeconds(base::RandInt(kMinDelay, kMaxDelay)));
+    return;
+  }
+  task_runner->PostTask(from_here, task);
+}
+
+}  // namespace
+
+void ChromeContentBrowserClient::PostAfterStartupTask(
+    const tracked_objects::Location& from_here,
+    const scoped_refptr<base::TaskRunner>& task_runner,
+    const base::Closure& task) {
+  PostAfterStartupTaskImpl(from_here, task_runner, task);
+}
+
 std::string ChromeContentBrowserClient::GetStoragePartitionIdForSite(
     content::BrowserContext* browser_context,
     const GURL& site) {