Conv CHECK->DCHECK in CloseHandle (top crasher & data enough to debug)

base/win/scoped_handle.cc

 // Copyright (c) 2012 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.
 
 #include "base/win/scoped_handle.h"
 
 #include <unordered_map>
 
 #include "base/debug/alias.h"
 #include "base/hash.h"
@@ skipping 22 matching lines @@
   const void* pc2;
   DWORD thread_id;
 };
 typedef std::unordered_map<HANDLE, Info, HandleHash> HandleMap;
 
 // g_lock protects the handle map and setting g_active_verifier.
 typedef base::internal::LockImpl NativeLock;
 base::LazyInstance<NativeLock>::Leaky g_lock = LAZY_INSTANCE_INITIALIZER;
 
 bool CloseHandleWrapper(HANDLE handle) {
-  if (!::CloseHandle(handle))
-    CHECK(false);
-  return true;
+  if (::CloseHandle(handle))
+    return true;
+
+  NOTREACHED();
+  return false;
 }
 
 // Simple automatic locking using a native critical section so it supports
 // recursive locking.
 class AutoNativeLock {
  public:
   explicit AutoNativeLock(NativeLock& lock) : lock_(lock) {
     lock_.Lock();
   }
 
@@ skipping 181 matching lines @@
 void DisableHandleVerifier() {
   return ActiveVerifier::Get()->Disable();
 }
 
 void OnHandleBeingClosed(HANDLE handle) {
   return ActiveVerifier::Get()->OnHandleBeingClosed(handle);
 }
 
 }  // namespace win
 }  // namespace base