import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/quota/QuotaCommon.h

@@ -0,0 +1,73 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_quota_quotacommon_h__
+#define mozilla_dom_quota_quotacommon_h__
+
+#include "nsCOMPtr.h"
+#include "nsDebug.h"
+#include "nsPrintfCString.h"
+#include "nsString.h"
+#include "nsTArray.h"
+
+#define BEGIN_QUOTA_NAMESPACE \
+  namespace mozilla { namespace dom { namespace quota {
+#define END_QUOTA_NAMESPACE \
+  } /* namespace quota */ } /* namespace dom */ } /* namespace mozilla */
+#define USING_QUOTA_NAMESPACE \
+  using namespace mozilla::dom::quota;
+
+#define DSSTORE_FILE_NAME ".DS_Store"
+
+#define QM_WARNING(...)                                                        \
+  do {                                                                         \
+    nsPrintfCString str(__VA_ARGS__);                                          \
+    mozilla::dom::quota::ReportInternalError(__FILE__, __LINE__, str.get());   \
+    NS_WARNING(str.get());                                                     \
+  } while (0)
+
+class nsIEventTarget;
+
+BEGIN_QUOTA_NAMESPACE
+
+class BackgroundThreadObject
+{
+protected:
+  nsCOMPtr<nsIEventTarget> mOwningThread;
+
+public:
+  void
+  AssertIsOnOwningThread() const
+#ifdef DEBUG
+  ;
+#else
+  { }
+#endif
+
+  nsIEventTarget*
+  OwningThread() const;
+
+protected:
+  BackgroundThreadObject();
+
+  explicit BackgroundThreadObject(nsIEventTarget* aOwningThread);
+};
+
+void
+AssertIsOnIOThread();
+
+void
+AssertCurrentThreadOwnsQuotaMutex();
+
+bool
+IsOnIOThread();
+
+void
+ReportInternalError(const char* aFile, uint32_t aLine, const char* aStr);
+
+END_QUOTA_NAMESPACE
+
+#endif // mozilla_dom_quota_quotacommon_h__