Change BrowserThreadDelegate to run Init() async.

content/browser/browser_thread_impl.cc

Index: content/browser/browser_thread_impl.cc
diff --git a/content/browser/browser_thread_impl.cc b/content/browser/browser_thread_impl.cc
index 422011422afa8f8bea82b63d680299980142ae86..abd498003d540e47d602cba8171a8774672ae483 100644
--- a/content/browser/browser_thread_impl.cc
+++ b/content/browser/browser_thread_impl.cc
@@ -103,8 +103,11 @@ void BrowserThreadImpl::Init() {
   AtomicWord stored_pointer = base::subtle::NoBarrier_Load(storage);
   BrowserThreadDelegate* delegate =
       reinterpret_cast<BrowserThreadDelegate*>(stored_pointer);
-  if (delegate)
-    delegate->Init();
+  if (delegate) {
+    message_loop()->PostTask(
+        FROM_HERE,
+        base::Bind(&BrowserThreadDelegate::Init, base::Unretained(delegate)));

[jam, 2013/07/11 20:57:13]

what guarantee do we have now that BrowserThreadDelegate will be alive? i.e. it
could be deleted right after this method returns. perhaps we want to call this
out in the comment

+  }
 }
 
 // We disable optimizations for this block of functions so the compiler doesn't