Schedule an APC to trigger the thread cap

chrome/app/chrome_exe_main_win.cc

Index: chrome/app/chrome_exe_main_win.cc
===================================================================
--- chrome/app/chrome_exe_main_win.cc	(revision 157020)
+++ chrome/app/chrome_exe_main_win.cc	(working copy)
@@ -21,8 +21,10 @@
  public:
   static void NTAPI UpdateCount(PVOID module, DWORD reason, PVOID reserved) {
     if (reason == DLL_THREAD_ATTACH) {
+      // We hit the threshold, but the loader would eat an exception fired now.
+      // So schedule an APC to fire the exception once loading is done.
       if (::InterlockedIncrement(&count_) > cap_)
-        __debugbreak();
+        ::QueueUserAPC(CrashProcessCallback, ::GetCurrentThread(), NULL);
     } else if (reason == DLL_THREAD_DETACH) {
       ::InterlockedDecrement(&count_);
     }
@@ -31,8 +33,10 @@
   static void SetCap(LONG cap) { cap_ = cap; }
 
  private:
-  static LONG volatile count_;
-  static LONG volatile cap_;
+  static void CALLBACK CrashProcessCallback(ULONG_PTR) { __debugbreak(); }
+
+  static volatile LONG count_;
+  static volatile LONG cap_;
 };
 
 LONG volatile ThreadTracker::count_ = 1;