Support running memory watch under vista, plus other tweaks...

tools/memory_watcher/dllmain.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // The memory_watcher.dll is hooked by simply linking it.  When we get the
 // windows notification that this DLL is loaded, we do a few things:
 //    1) Register a Hot Key.
 //       Only one process can hook the Hot Key, so one will get it, and the
 //       others will silently fail.
 //    2) Create a thread to wait on an event.
@@ skipping 42 matching lines @@
 // Thread for watching for key events.
 DWORD WINAPI ThreadMain(LPVOID) {
   bool stopping = false;
   HANDLE events[2] =  { g_dump_event, g_quit_event };
   while (!stopping) {
     DWORD rv = WaitForMultipleObjects(2, events, FALSE, INFINITE);
     switch (rv) {
       case WAIT_OBJECT_0:
         if (g_memory_watcher) {
           g_memory_watcher->DumpLeaks();
-          // After dumping, we teardown.
-          ExitProcess(0);
         }
+        stopping = true;
         break;
       case WAIT_OBJECT_0 + 1:
         stopping = true;
         break;
       default:
         NOTREACHED();
         break;
     }
   }
   return 0;
@@ skipping 60 matching lines @@
       break;
   }
   return TRUE;
 }
 
 __declspec(dllexport) void __cdecl SetLogName(char* name) {
   g_memory_watcher->SetLogName(name);
 }
 
 }  // extern "C"