Add m-esr52 at 52.6.0

1 files changed, 1126 insertions, 0 deletions

diff --git a/xpcom/build/XPCOMInit.cpp b/xpcom/build/XPCOMInit.cpp
new file mode 100644
index 000000000..c72ea48d7
--- /dev/null
+++ b/xpcom/build/XPCOMInit.cpp
@@ -0,0 +1,1126 @@
+/* -*- 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/. */
+
+#include "base/basictypes.h"
+
+#include "mozilla/AbstractThread.h"
+#include "mozilla/Atomics.h"
+#include "mozilla/Poison.h"
+#include "mozilla/SharedThreadPool.h"
+#include "mozilla/XPCOM.h"
+#include "nsXULAppAPI.h"
+
+#include "nsXPCOMPrivate.h"
+#include "nsXPCOMCIDInternal.h"
+
+#include "mozilla/layers/ImageBridgeChild.h"
+#include "mozilla/layers/CompositorBridgeParent.h"
+#include "mozilla/dom/VideoDecoderManagerChild.h"
+
+#include "prlink.h"
+
+#include "nsCycleCollector.h"
+#include "nsObserverList.h"
+#include "nsObserverService.h"
+#include "nsProperties.h"
+#include "nsPersistentProperties.h"
+#include "nsScriptableInputStream.h"
+#include "nsBinaryStream.h"
+#include "nsStorageStream.h"
+#include "nsPipe.h"
+#include "nsScriptableBase64Encoder.h"
+
+#include "nsMemoryImpl.h"
+#include "nsDebugImpl.h"
+#include "nsTraceRefcnt.h"
+#include "nsErrorService.h"
+
+// Disable deprecation warnings generated by nsISupportsArray and associated
+// classes.
+#if defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#elif defined(_MSC_VER)
+#pragma warning (push)
+#pragma warning (disable : 4996)
+#endif
+
+#include "nsSupportsArray.h"
+
+#if defined(__GNUC__)
+#pragma GCC diagnostic pop
+#elif defined(_MSC_VER)
+#pragma warning (pop)
+#endif
+
+#include "nsArray.h"
+#include "nsINIParserImpl.h"
+#include "nsSupportsPrimitives.h"
+#include "nsConsoleService.h"
+
+#include "nsComponentManager.h"
+#include "nsCategoryManagerUtils.h"
+#include "nsIServiceManager.h"
+
+#include "nsThreadManager.h"
+#include "nsThreadPool.h"
+
+#include "xptinfo.h"
+#include "nsIInterfaceInfoManager.h"
+#include "xptiprivate.h"
+#include "mozilla/XPTInterfaceInfoManager.h"
+
+#include "nsTimerImpl.h"
+#include "TimerThread.h"
+
+#include "nsThread.h"
+#include "nsProcess.h"
+#include "nsEnvironment.h"
+#include "nsVersionComparatorImpl.h"
+
+#include "nsIFile.h"
+#include "nsLocalFile.h"
+#if defined(XP_UNIX)
+#include "nsNativeCharsetUtils.h"
+#endif
+#include "nsDirectoryService.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsCategoryManager.h"
+#include "nsICategoryManager.h"
+#include "nsMultiplexInputStream.h"
+
+#include "nsStringStream.h"
+extern nsresult nsStringInputStreamConstructor(nsISupports*, REFNSIID, void**);
+
+#include "nsAtomService.h"
+#include "nsAtomTable.h"
+#include "nsISupportsImpl.h"
+
+#include "nsHashPropertyBag.h"
+
+#include "nsUnicharInputStream.h"
+#include "nsVariant.h"
+
+#include "nsUUIDGenerator.h"
+
+#include "nsIOUtil.h"
+
+#include "SpecialSystemDirectory.h"
+
+#if defined(XP_WIN)
+#include "mozilla/WindowsVersion.h"
+#include "nsWindowsRegKey.h"
+#endif
+
+#ifdef MOZ_WIDGET_COCOA
+#include "nsMacUtilsImpl.h"
+#endif
+
+#include "nsSystemInfo.h"
+#include "nsMemoryReporterManager.h"
+#include "nsMemoryInfoDumper.h"
+#include "nsSecurityConsoleMessage.h"
+#include "nsMessageLoop.h"
+
+#include "nsStatusReporterManager.h"
+
+#include <locale.h>
+#include "mozilla/Services.h"
+#include "mozilla/Omnijar.h"
+#include "mozilla/HangMonitor.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/BackgroundHangMonitor.h"
+
+#include "nsChromeRegistry.h"
+#include "nsChromeProtocolHandler.h"
+#include "mozilla/PoisonIOInterposer.h"
+#include "mozilla/LateWriteChecks.h"
+
+#include "mozilla/scache/StartupCache.h"
+
+#include "base/at_exit.h"
+#include "base/command_line.h"
+#include "base/message_loop.h"
+
+#include "mozilla/ipc/BrowserProcessSubThread.h"
+#include "mozilla/AvailableMemoryTracker.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/CountingAllocatorBase.h"
+#include "mozilla/SystemMemoryReporter.h"
+#include "mozilla/UniquePtr.h"
+
+#include "mozilla/ipc/GeckoChildProcessHost.h"
+
+#include "ogg/ogg.h"
+#if defined(MOZ_VPX) && !defined(MOZ_VPX_NO_MEM_REPORTING)
+#if defined(HAVE_STDINT_H)
+// mozilla-config.h defines HAVE_STDINT_H, and then it's defined *again* in
+// vpx_config.h (which we include via vpx_mem.h, below). This redefinition
+// triggers a build warning on MSVC, so we have to #undef it first.
+#undef HAVE_STDINT_H
+#endif
+#include "vpx_mem/vpx_mem.h"
+#endif
+
+#include "GeckoProfiler.h"
+
+#include "jsapi.h"
+#include "js/Initialization.h"
+
+#include "gfxPlatform.h"
+
+#if EXPOSE_INTL_API
+#include "unicode/putil.h"
+#endif
+
+using namespace mozilla;
+using base::AtExitManager;
+using mozilla::ipc::BrowserProcessSubThread;
+
+namespace {
+
+static AtExitManager* sExitManager;
+static MessageLoop* sMessageLoop;
+static bool sCommandLineWasInitialized;
+static BrowserProcessSubThread* sIOThread;
+static BackgroundHangMonitor* sMainHangMonitor;
+
+} /* anonymous namespace */
+
+// Registry Factory creation function defined in nsRegistry.cpp
+// We hook into this function locally to create and register the registry
+// Since noone outside xpcom needs to know about this and nsRegistry.cpp
+// does not have a local include file, we are putting this definition
+// here rather than in nsIRegistry.h
+extern nsresult NS_RegistryGetFactory(nsIFactory** aFactory);
+extern nsresult NS_CategoryManagerGetFactory(nsIFactory**);
+
+#ifdef XP_WIN
+extern nsresult CreateAnonTempFileRemover();
+#endif
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsProcess)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsID)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsString)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsCString)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRBool)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint8)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint16)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint32)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint64)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRTime)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsChar)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRInt16)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRInt32)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRInt64)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsFloat)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsDouble)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsVoid)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsInterfacePointer)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsConsoleService, Init)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsAtomService)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsTimer)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsBinaryOutputStream)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsBinaryInputStream)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsStorageStream)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsVersionComparatorImpl)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsScriptableBase64Encoder)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsVariantCC)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsHashPropertyBagCC)
+
+NS_GENERIC_AGGREGATED_CONSTRUCTOR(nsProperties)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsUUIDGenerator, Init)
+
+#ifdef MOZ_WIDGET_COCOA
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsMacUtilsImpl)
+#endif
+
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsSystemInfo, Init)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsMemoryReporterManager, Init)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsMemoryInfoDumper)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsStatusReporterManager, Init)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsIOUtil)
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSecurityConsoleMessage)
+
+static nsresult
+nsThreadManagerGetSingleton(nsISupports* aOuter,
+                            const nsIID& aIID,
+                            void** aInstancePtr)
+{
+  NS_ASSERTION(aInstancePtr, "null outptr");
+  if (NS_WARN_IF(aOuter)) {
+    return NS_ERROR_NO_AGGREGATION;
+  }
+
+  return nsThreadManager::get().QueryInterface(aIID, aInstancePtr);
+}
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsThreadPool)
+
+static nsresult
+nsXPTIInterfaceInfoManagerGetSingleton(nsISupports* aOuter,
+                                       const nsIID& aIID,
+                                       void** aInstancePtr)
+{
+  NS_ASSERTION(aInstancePtr, "null outptr");
+  if (NS_WARN_IF(aOuter)) {
+    return NS_ERROR_NO_AGGREGATION;
+  }
+
+  nsCOMPtr<nsIInterfaceInfoManager> iim(XPTInterfaceInfoManager::GetSingleton());
+  if (!iim) {
+    return NS_ERROR_FAILURE;
+  }
+
+  return iim->QueryInterface(aIID, aInstancePtr);
+}
+
+nsComponentManagerImpl* nsComponentManagerImpl::gComponentManager = nullptr;
+bool gXPCOMShuttingDown = false;
+bool gXPCOMThreadsShutDown = false;
+char16_t* gGREBinPath = nullptr;
+
+static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
+static NS_DEFINE_CID(kINIParserFactoryCID, NS_INIPARSERFACTORY_CID);
+
+NS_DEFINE_NAMED_CID(NS_CHROMEREGISTRY_CID);
+NS_DEFINE_NAMED_CID(NS_CHROMEPROTOCOLHANDLER_CID);
+
+NS_DEFINE_NAMED_CID(NS_SECURITY_CONSOLE_MESSAGE_CID);
+
+NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsChromeRegistry,
+                                         nsChromeRegistry::GetSingleton)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsChromeProtocolHandler)
+
+#define NS_PERSISTENTPROPERTIES_CID NS_IPERSISTENTPROPERTIES_CID /* sigh */
+
+static already_AddRefed<nsIFactory>
+CreateINIParserFactory(const mozilla::Module& aModule,
+                       const mozilla::Module::CIDEntry& aEntry)
+{
+  nsCOMPtr<nsIFactory> f = new nsINIParserFactory();
+  return f.forget();
+}
+
+#define COMPONENT(NAME, Ctor) static NS_DEFINE_CID(kNS_##NAME##_CID, NS_##NAME##_CID);
+#define COMPONENT_M(NAME, Ctor, Selector) static NS_DEFINE_CID(kNS_##NAME##_CID, NS_##NAME##_CID);
+#include "XPCOMModule.inc"
+#undef COMPONENT
+#undef COMPONENT_M
+
+#define COMPONENT(NAME, Ctor) { &kNS_##NAME##_CID, false, nullptr, Ctor },
+#define COMPONENT_M(NAME, Ctor, Selector) { &kNS_##NAME##_CID, false, nullptr, Ctor, Selector },
+const mozilla::Module::CIDEntry kXPCOMCIDEntries[] = {
+  { &kComponentManagerCID, true, nullptr, nsComponentManagerImpl::Create, Module::ALLOW_IN_GPU_PROCESS },
+  { &kINIParserFactoryCID, false, CreateINIParserFactory },
+#include "XPCOMModule.inc"
+  { &kNS_CHROMEREGISTRY_CID, false, nullptr, nsChromeRegistryConstructor },
+  { &kNS_CHROMEPROTOCOLHANDLER_CID, false, nullptr, nsChromeProtocolHandlerConstructor },
+  { &kNS_SECURITY_CONSOLE_MESSAGE_CID, false, nullptr, nsSecurityConsoleMessageConstructor },
+  { nullptr }
+};
+#undef COMPONENT
+#undef COMPONENT_M
+
+#define COMPONENT(NAME, Ctor) { NS_##NAME##_CONTRACTID, &kNS_##NAME##_CID },
+#define COMPONENT_M(NAME, Ctor, Selector) { NS_##NAME##_CONTRACTID, &kNS_##NAME##_CID, Selector },
+const mozilla::Module::ContractIDEntry kXPCOMContracts[] = {
+#include "XPCOMModule.inc"
+  { NS_CHROMEREGISTRY_CONTRACTID, &kNS_CHROMEREGISTRY_CID },
+  { NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "chrome", &kNS_CHROMEPROTOCOLHANDLER_CID },
+  { NS_INIPARSERFACTORY_CONTRACTID, &kINIParserFactoryCID },
+  { NS_SECURITY_CONSOLE_MESSAGE_CONTRACTID, &kNS_SECURITY_CONSOLE_MESSAGE_CID },
+  { nullptr }
+};
+#undef COMPONENT
+#undef COMPONENT_M
+
+const mozilla::Module kXPCOMModule = {
+  mozilla::Module::kVersion, kXPCOMCIDEntries, kXPCOMContracts,
+  nullptr,
+  nullptr,
+  nullptr,
+  nullptr,
+  Module::ALLOW_IN_GPU_PROCESS
+};
+
+// gDebug will be freed during shutdown.
+static nsIDebug2* gDebug = nullptr;
+
+EXPORT_XPCOM_API(nsresult)
+NS_GetDebug(nsIDebug2** aResult)
+{
+  return nsDebugImpl::Create(nullptr,  NS_GET_IID(nsIDebug2), (void**)aResult);
+}
+
+EXPORT_XPCOM_API(nsresult)
+NS_InitXPCOM(nsIServiceManager** aResult,
+             nsIFile* aBinDirectory)
+{
+  return NS_InitXPCOM2(aResult, aBinDirectory, nullptr);
+}
+
+class ICUReporter final
+  : public nsIMemoryReporter
+  , public CountingAllocatorBase<ICUReporter>
+{
+public:
+  NS_DECL_ISUPPORTS
+
+  static void* Alloc(const void*, size_t aSize)
+  {
+    return CountingMalloc(aSize);
+  }
+
+  static void* Realloc(const void*, void* aPtr, size_t aSize)
+  {
+    return CountingRealloc(aPtr, aSize);
+  }
+
+  static void Free(const void*, void* aPtr)
+  {
+    return CountingFree(aPtr);
+  }
+
+private:
+  NS_IMETHOD
+  CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData,
+                 bool aAnonymize) override
+  {
+    MOZ_COLLECT_REPORT(
+      "explicit/icu", KIND_HEAP, UNITS_BYTES, MemoryAllocated(),
+      "Memory used by ICU, a Unicode and globalization support library.");
+
+    return NS_OK;
+  }
+
+  ~ICUReporter() {}
+};
+
+NS_IMPL_ISUPPORTS(ICUReporter, nsIMemoryReporter)
+
+/* static */ template<> Atomic<size_t>
+CountingAllocatorBase<ICUReporter>::sAmount(0);
+
+class OggReporter final
+  : public nsIMemoryReporter
+  , public CountingAllocatorBase<OggReporter>
+{
+public:
+  NS_DECL_ISUPPORTS
+
+private:
+  NS_IMETHOD
+  CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData,
+                 bool aAnonymize) override
+  {
+    MOZ_COLLECT_REPORT(
+      "explicit/media/libogg", KIND_HEAP, UNITS_BYTES, MemoryAllocated(),
+      "Memory allocated through libogg for Ogg, Theora, and related media "
+      "files.");
+
+    return NS_OK;
+  }
+
+  ~OggReporter() {}
+};
+
+NS_IMPL_ISUPPORTS(OggReporter, nsIMemoryReporter)
+
+/* static */ template<> Atomic<size_t>
+CountingAllocatorBase<OggReporter>::sAmount(0);
+
+#ifdef MOZ_VPX
+class VPXReporter final
+  : public nsIMemoryReporter
+  , public CountingAllocatorBase<VPXReporter>
+{
+public:
+  NS_DECL_ISUPPORTS
+
+private:
+  NS_IMETHOD
+  CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData,
+                 bool aAnonymize) override
+  {
+    MOZ_COLLECT_REPORT(
+      "explicit/media/libvpx", KIND_HEAP, UNITS_BYTES, MemoryAllocated(),
+      "Memory allocated through libvpx for WebM media files.");
+
+    return NS_OK;
+  }
+
+  ~VPXReporter() {}
+};
+
+NS_IMPL_ISUPPORTS(VPXReporter, nsIMemoryReporter)
+
+/* static */ template<> Atomic<size_t>
+CountingAllocatorBase<VPXReporter>::sAmount(0);
+#endif /* MOZ_VPX */
+
+static double
+TimeSinceProcessCreation()
+{
+  bool ignore;
+  return (TimeStamp::Now() - TimeStamp::ProcessCreation(ignore)).ToMilliseconds();
+}
+
+static bool sInitializedJS = false;
+
+// Note that on OSX, aBinDirectory will point to .app/Contents/Resources/browser
+EXPORT_XPCOM_API(nsresult)
+NS_InitXPCOM2(nsIServiceManager** aResult,
+              nsIFile* aBinDirectory,
+              nsIDirectoryServiceProvider* aAppFileLocationProvider)
+{
+  static bool sInitialized = false;
+  if (sInitialized) {
+    return NS_ERROR_FAILURE;
+  }
+
+  sInitialized = true;
+
+  mozPoisonValueInit();
+
+  NS_LogInit();
+
+  NS_InitAtomTable();
+
+  mozilla::LogModule::Init();
+
+  JS_SetCurrentEmbedderTimeFunction(TimeSinceProcessCreation);
+
+  char aLocal;
+  profiler_init(&aLocal);
+  nsresult rv = NS_OK;
+
+  // We are not shutting down
+  gXPCOMShuttingDown = false;
+
+  // Initialize the available memory tracker before other threads have had a
+  // chance to start up, because the initialization is not thread-safe.
+  mozilla::AvailableMemoryTracker::Init();
+
+#ifdef XP_UNIX
+  // Discover the current value of the umask, and save it where
+  // nsSystemInfo::Init can retrieve it when necessary.  There is no way
+  // to read the umask without changing it, and the setting is process-
+  // global, so this must be done while we are still single-threaded; the
+  // nsSystemInfo object is typically created much later, when some piece
+  // of chrome JS wants it.  The system call is specified as unable to fail.
+  nsSystemInfo::gUserUmask = ::umask(0777);
+  ::umask(nsSystemInfo::gUserUmask);
+#endif
+
+  // Set up chromium libs
+  NS_ASSERTION(!sExitManager && !sMessageLoop, "Bad logic!");
+
+  if (!AtExitManager::AlreadyRegistered()) {
+    sExitManager = new AtExitManager();
+  }
+
+  MessageLoop* messageLoop = MessageLoop::current();
+  if (!messageLoop) {
+    sMessageLoop = new MessageLoopForUI(MessageLoop::TYPE_MOZILLA_PARENT);
+    sMessageLoop->set_thread_name("Gecko");
+    // Set experimental values for main thread hangs:
+    // 128ms for transient hangs and 8192ms for permanent hangs
+    sMessageLoop->set_hang_timeouts(128, 8192);
+  } else if (messageLoop->type() == MessageLoop::TYPE_MOZILLA_CHILD) {
+    messageLoop->set_thread_name("Gecko_Child");
+    messageLoop->set_hang_timeouts(128, 8192);
+  }
+
+  if (XRE_IsParentProcess() &&
+      !BrowserProcessSubThread::GetMessageLoop(BrowserProcessSubThread::IO)) {
+    UniquePtr<BrowserProcessSubThread> ioThread = MakeUnique<BrowserProcessSubThread>(BrowserProcessSubThread::IO);
+
+    base::Thread::Options options;
+    options.message_loop_type = MessageLoop::TYPE_IO;
+    if (NS_WARN_IF(!ioThread->StartWithOptions(options))) {
+      return NS_ERROR_FAILURE;
+    }
+
+    sIOThread = ioThread.release();
+  }
+
+  // Establish the main thread here.
+  rv = nsThreadManager::get().Init();
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  // Set up the timer globals/timer thread
+  rv = nsTimerImpl::Startup();
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+#ifndef ANDROID
+  // If the locale hasn't already been setup by our embedder,
+  // get us out of the "C" locale and into the system
+  if (strcmp(setlocale(LC_ALL, nullptr), "C") == 0) {
+    setlocale(LC_ALL, "");
+  }
+#endif
+
+#if defined(XP_UNIX)
+  NS_StartupNativeCharsetUtils();
+#endif
+
+  NS_StartupLocalFile();
+
+  StartupSpecialSystemDirectory();
+
+  nsDirectoryService::RealInit();
+
+  bool value;
+
+  if (aBinDirectory) {
+    rv = aBinDirectory->IsDirectory(&value);
+
+    if (NS_SUCCEEDED(rv) && value) {
+      nsDirectoryService::gService->Set(NS_XPCOM_INIT_CURRENT_PROCESS_DIR,
+                                        aBinDirectory);
+    }
+  }
+
+  if (aAppFileLocationProvider) {
+    rv = nsDirectoryService::gService->RegisterProvider(aAppFileLocationProvider);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+  }
+
+  nsCOMPtr<nsIFile> xpcomLib;
+  nsDirectoryService::gService->Get(NS_GRE_BIN_DIR,
+                                    NS_GET_IID(nsIFile),
+                                    getter_AddRefs(xpcomLib));
+  MOZ_ASSERT(xpcomLib);
+
+  // set gGREBinPath
+  nsAutoString path;
+  xpcomLib->GetPath(path);
+  gGREBinPath = ToNewUnicode(path);
+
+  xpcomLib->AppendNative(nsDependentCString(XPCOM_DLL));
+  nsDirectoryService::gService->Set(NS_XPCOM_LIBRARY_FILE, xpcomLib);
+
+  if (!mozilla::Omnijar::IsInitialized()) {
+    mozilla::Omnijar::Init();
+  }
+
+  if ((sCommandLineWasInitialized = !CommandLine::IsInitialized())) {
+#ifdef OS_WIN
+    CommandLine::Init(0, nullptr);
+#else
+    nsCOMPtr<nsIFile> binaryFile;
+    nsDirectoryService::gService->Get(NS_XPCOM_CURRENT_PROCESS_DIR,
+                                      NS_GET_IID(nsIFile),
+                                      getter_AddRefs(binaryFile));
+    if (NS_WARN_IF(!binaryFile)) {
+      return NS_ERROR_FAILURE;
+    }
+
+    rv = binaryFile->AppendNative(NS_LITERAL_CSTRING("nonexistent-executable"));
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return rv;
+    }
+
+    nsCString binaryPath;
+    rv = binaryFile->GetNativePath(binaryPath);
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return rv;
+    }
+
+    static char const* const argv = { strdup(binaryPath.get()) };
+    CommandLine::Init(1, &argv);
+#endif
+  }
+
+  NS_ASSERTION(nsComponentManagerImpl::gComponentManager == nullptr,
+               "CompMgr not null at init");
+
+  // Create the Component/Service Manager
+  nsComponentManagerImpl::gComponentManager = new nsComponentManagerImpl();
+  NS_ADDREF(nsComponentManagerImpl::gComponentManager);
+
+  // Global cycle collector initialization.
+  if (!nsCycleCollector_init()) {
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  // And start it up for this thread too.
+  nsCycleCollector_startup();
+
+  // Register ICU memory functions.  This really shouldn't be necessary: the
+  // JS engine should do this on its own inside JS_Init, and memory-reporting
+  // code should call a JSAPI function to observe ICU memory usage.  But we
+  // can't define the alloc/free functions in the JS engine, because it can't
+  // depend on the XPCOM-based memory reporting goop.  So for now, we have
+  // this oddness.
+  mozilla::SetICUMemoryFunctions();
+
+  // Do the same for libogg.
+  ogg_set_mem_functions(OggReporter::CountingMalloc,
+                        OggReporter::CountingCalloc,
+                        OggReporter::CountingRealloc,
+                        OggReporter::CountingFree);
+
+#if defined(MOZ_VPX) && !defined(MOZ_VPX_NO_MEM_REPORTING)
+  // And for VPX.
+  vpx_mem_set_functions(VPXReporter::CountingMalloc,
+                        VPXReporter::CountingCalloc,
+                        VPXReporter::CountingRealloc,
+                        VPXReporter::CountingFree,
+                        memcpy,
+                        memset,
+                        memmove);
+#endif
+
+#if EXPOSE_INTL_API && defined(MOZ_ICU_DATA_ARCHIVE)
+  nsCOMPtr<nsIFile> greDir;
+  nsDirectoryService::gService->Get(NS_GRE_DIR,
+                                    NS_GET_IID(nsIFile),
+                                    getter_AddRefs(greDir));
+  MOZ_ASSERT(greDir);
+  nsAutoCString nativeGREPath;
+  greDir->GetNativePath(nativeGREPath);
+  u_setDataDirectory(nativeGREPath.get());
+#endif
+
+  // Initialize the JS engine.
+  const char* jsInitFailureReason = JS_InitWithFailureDiagnostic();
+  if (jsInitFailureReason) {
+    NS_RUNTIMEABORT(jsInitFailureReason);
+  }
+  sInitializedJS = true;
+  
+  // Init AbstractThread.
+  AbstractThread::InitStatics();
+
+  rv = nsComponentManagerImpl::gComponentManager->Init();
+  if (NS_FAILED(rv)) {
+    NS_RELEASE(nsComponentManagerImpl::gComponentManager);
+    return rv;
+  }
+
+  if (aResult) {
+    NS_ADDREF(*aResult = nsComponentManagerImpl::gComponentManager);
+  }
+
+  // The iimanager constructor searches and registers XPT files.
+  // (We trigger the singleton's lazy construction here to make that happen.)
+  (void)XPTInterfaceInfoManager::GetSingleton();
+
+  // After autoreg, but before we actually instantiate any components,
+  // add any services listed in the "xpcom-directory-providers" category
+  // to the directory service.
+  nsDirectoryService::gService->RegisterCategoryProviders();
+
+  // Init SharedThreadPool (which needs the service manager).
+  SharedThreadPool::InitStatics();
+
+  // Force layout to spin up so that nsContentUtils is available for cx stack
+  // munging.  Note that layout registers a number of static atoms, and also
+  // seals the static atom table, so NS_RegisterStaticAtom may not be called
+  // beyond this point.
+  nsCOMPtr<nsISupports> componentLoader =
+    do_GetService("@mozilla.org/moz/jsloader;1");
+
+  mozilla::scache::StartupCache::GetSingleton();
+  mozilla::AvailableMemoryTracker::Activate();
+
+  // Notify observers of xpcom autoregistration start
+  NS_CreateServicesFromCategory(NS_XPCOM_STARTUP_CATEGORY,
+                                nullptr,
+                                NS_XPCOM_STARTUP_OBSERVER_ID);
+#ifdef XP_WIN
+  CreateAnonTempFileRemover();
+#endif
+
+  // We only want the SystemMemoryReporter running in one process, because it
+  // profiles the entire system.  The main process is the obvious place for
+  // it.
+  if (XRE_IsParentProcess()) {
+    mozilla::SystemMemoryReporter::Init();
+  }
+
+  // The memory reporter manager is up and running -- register our reporters.
+  RegisterStrongMemoryReporter(new ICUReporter());
+  RegisterStrongMemoryReporter(new OggReporter());
+#ifdef MOZ_VPX
+  RegisterStrongMemoryReporter(new VPXReporter());
+#endif
+
+  mozilla::Telemetry::Init();
+
+  mozilla::HangMonitor::Startup();
+  mozilla::BackgroundHangMonitor::Startup();
+
+  const MessageLoop* const loop = MessageLoop::current();
+  sMainHangMonitor = new mozilla::BackgroundHangMonitor(
+    loop->thread_name().c_str(),
+    loop->transient_hang_timeout(),
+    loop->permanent_hang_timeout());
+
+  return NS_OK;
+}
+
+EXPORT_XPCOM_API(nsresult)
+NS_InitMinimalXPCOM()
+{
+  mozPoisonValueInit();
+  NS_SetMainThread();
+  mozilla::TimeStamp::Startup();
+  NS_LogInit();
+  NS_InitAtomTable();
+  mozilla::LogModule::Init();
+
+  char aLocal;
+  profiler_init(&aLocal);
+
+  nsresult rv = nsThreadManager::get().Init();
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  // Set up the timer globals/timer thread.
+  rv = nsTimerImpl::Startup();
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  // Create the Component/Service Manager
+  nsComponentManagerImpl::gComponentManager = new nsComponentManagerImpl();
+  NS_ADDREF(nsComponentManagerImpl::gComponentManager);
+
+  rv = nsComponentManagerImpl::gComponentManager->Init();
+  if (NS_FAILED(rv)) {
+    NS_RELEASE(nsComponentManagerImpl::gComponentManager);
+    return rv;
+  }
+
+  // Global cycle collector initialization.
+  if (!nsCycleCollector_init()) {
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  AbstractThread::InitStatics();
+  SharedThreadPool::InitStatics();
+  mozilla::Telemetry::Init();
+  mozilla::HangMonitor::Startup();
+  mozilla::BackgroundHangMonitor::Startup();
+
+  return NS_OK;
+}
+
+//
+// NS_ShutdownXPCOM()
+//
+// The shutdown sequence for xpcom would be
+//
+// - Notify "xpcom-shutdown" for modules to release primary (root) references
+// - Shutdown XPCOM timers
+// - Notify "xpcom-shutdown-threads" for thread joins
+// - Shutdown the event queues
+// - Release the Global Service Manager
+//   - Release all service instances held by the global service manager
+//   - Release the Global Service Manager itself
+// - Release the Component Manager
+//   - Release all factories cached by the Component Manager
+//   - Notify module loaders to shut down
+//   - Unload Libraries
+//   - Release Contractid Cache held by Component Manager
+//   - Release dll abstraction held by Component Manager
+//   - Release the Registry held by Component Manager
+//   - Finally, release the component manager itself
+//
+EXPORT_XPCOM_API(nsresult)
+NS_ShutdownXPCOM(nsIServiceManager* aServMgr)
+{
+  return mozilla::ShutdownXPCOM(aServMgr);
+}
+
+namespace mozilla {
+
+void
+SetICUMemoryFunctions()
+{
+  static bool sICUReporterInitialized = false;
+  if (!sICUReporterInitialized) {
+    if (!JS_SetICUMemoryFunctions(ICUReporter::Alloc, ICUReporter::Realloc,
+                                  ICUReporter::Free)) {
+      NS_RUNTIMEABORT("JS_SetICUMemoryFunctions failed.");
+    }
+    sICUReporterInitialized = true;
+  }
+}
+
+nsresult
+ShutdownXPCOM(nsIServiceManager* aServMgr)
+{
+  // Make sure the hang monitor is enabled for shutdown.
+  HangMonitor::NotifyActivity();
+
+  if (!NS_IsMainThread()) {
+    NS_RUNTIMEABORT("Shutdown on wrong thread");
+  }
+
+  nsresult rv;
+  nsCOMPtr<nsISimpleEnumerator> moduleLoaders;
+
+  // Notify observers of xpcom shutting down
+  {
+    // Block it so that the COMPtr will get deleted before we hit
+    // servicemanager shutdown
+
+    nsCOMPtr<nsIThread> thread = do_GetCurrentThread();
+    if (NS_WARN_IF(!thread)) {
+      return NS_ERROR_UNEXPECTED;
+    }
+
+    RefPtr<nsObserverService> observerService;
+    CallGetService("@mozilla.org/observer-service;1",
+                   (nsObserverService**)getter_AddRefs(observerService));
+
+    if (observerService) {
+      mozilla::KillClearOnShutdown(ShutdownPhase::WillShutdown);
+      observerService->NotifyObservers(nullptr,
+                                       NS_XPCOM_WILL_SHUTDOWN_OBSERVER_ID,
+                                       nullptr);
+
+      nsCOMPtr<nsIServiceManager> mgr;
+      rv = NS_GetServiceManager(getter_AddRefs(mgr));
+      if (NS_SUCCEEDED(rv)) {
+        mozilla::KillClearOnShutdown(ShutdownPhase::Shutdown);
+        observerService->NotifyObservers(mgr, NS_XPCOM_SHUTDOWN_OBSERVER_ID,
+                                         nullptr);
+      }
+    }
+
+    // This must happen after the shutdown of media and widgets, which
+    // are triggered by the NS_XPCOM_SHUTDOWN_OBSERVER_ID notification.
+    NS_ProcessPendingEvents(thread);
+    gfxPlatform::ShutdownLayersIPC();
+    mozilla::dom::VideoDecoderManagerChild::Shutdown();
+
+    mozilla::scache::StartupCache::DeleteSingleton();
+    if (observerService)
+    {
+      mozilla::KillClearOnShutdown(ShutdownPhase::ShutdownThreads);
+      observerService->NotifyObservers(nullptr,
+                                       NS_XPCOM_SHUTDOWN_THREADS_OBSERVER_ID,
+                                       nullptr);
+    }
+
+    gXPCOMThreadsShutDown = true;
+    NS_ProcessPendingEvents(thread);
+
+    // Shutdown the timer thread and all timers that might still be alive before
+    // shutting down the component manager
+    nsTimerImpl::Shutdown();
+
+    NS_ProcessPendingEvents(thread);
+
+    // Shutdown all remaining threads.  This method does not return until
+    // all threads created using the thread manager (with the exception of
+    // the main thread) have exited.
+    nsThreadManager::get().Shutdown();
+
+    NS_ProcessPendingEvents(thread);
+
+    HangMonitor::NotifyActivity();
+
+    // Late-write checks needs to find the profile directory, so it has to
+    // be initialized before mozilla::services::Shutdown or (because of
+    // xpcshell tests replacing the service) modules being unloaded.
+    mozilla::InitLateWriteChecks();
+
+    // We save the "xpcom-shutdown-loaders" observers to notify after
+    // the observerservice is gone.
+    if (observerService) {
+      mozilla::KillClearOnShutdown(ShutdownPhase::ShutdownLoaders);
+      observerService->EnumerateObservers(NS_XPCOM_SHUTDOWN_LOADERS_OBSERVER_ID,
+                                          getter_AddRefs(moduleLoaders));
+
+      observerService->Shutdown();
+    }
+  }
+
+  // Free ClearOnShutdown()'ed smart pointers.  This needs to happen *after*
+  // we've finished notifying observers of XPCOM shutdown, because shutdown
+  // observers themselves might call ClearOnShutdown().
+  mozilla::KillClearOnShutdown(ShutdownPhase::ShutdownFinal);
+
+  // XPCOM is officially in shutdown mode NOW
+  // Set this only after the observers have been notified as this
+  // will cause servicemanager to become inaccessible.
+  mozilla::services::Shutdown();
+
+  // We may have AddRef'd for the caller of NS_InitXPCOM, so release it
+  // here again:
+  NS_IF_RELEASE(aServMgr);
+
+  // Shutdown global servicemanager
+  if (nsComponentManagerImpl::gComponentManager) {
+    nsComponentManagerImpl::gComponentManager->FreeServices();
+  }
+
+  // Release the directory service
+  nsDirectoryService::gService = nullptr;
+
+  free(gGREBinPath);
+  gGREBinPath = nullptr;
+
+  if (moduleLoaders) {
+    bool more;
+    nsCOMPtr<nsISupports> el;
+    while (NS_SUCCEEDED(moduleLoaders->HasMoreElements(&more)) && more) {
+      moduleLoaders->GetNext(getter_AddRefs(el));
+
+      // Don't worry about weak-reference observers here: there is
+      // no reason for weak-ref observers to register for
+      // xpcom-shutdown-loaders
+
+      // FIXME: This can cause harmless writes from sqlite committing
+      // log files. We have to ignore them before we can move
+      // the mozilla::PoisonWrite call before this point. See bug
+      // 834945 for the details.
+      nsCOMPtr<nsIObserver> obs(do_QueryInterface(el));
+      if (obs) {
+        obs->Observe(nullptr, NS_XPCOM_SHUTDOWN_LOADERS_OBSERVER_ID, nullptr);
+      }
+    }
+
+    moduleLoaders = nullptr;
+  }
+
+  bool shutdownCollect;
+#ifdef NS_FREE_PERMANENT_DATA
+  shutdownCollect = true;
+#else
+  shutdownCollect = !!PR_GetEnv("MOZ_CC_RUN_DURING_SHUTDOWN");
+#endif
+  nsCycleCollector_shutdown(shutdownCollect);
+
+  PROFILER_MARKER("Shutdown xpcom");
+  // If we are doing any shutdown checks, poison writes.
+  if (gShutdownChecks != SCM_NOTHING) {
+#ifdef XP_MACOSX
+    mozilla::OnlyReportDirtyWrites();
+#endif /* XP_MACOSX */
+    mozilla::BeginLateWriteChecks();
+  }
+
+  // Shutdown nsLocalFile string conversion
+  NS_ShutdownLocalFile();
+#ifdef XP_UNIX
+  NS_ShutdownNativeCharsetUtils();
+#endif
+
+  // Shutdown xpcom. This will release all loaders and cause others holding
+  // a refcount to the component manager to release it.
+  if (nsComponentManagerImpl::gComponentManager) {
+    rv = (nsComponentManagerImpl::gComponentManager)->Shutdown();
+    NS_ASSERTION(NS_SUCCEEDED(rv), "Component Manager shutdown failed.");
+  } else {
+    NS_WARNING("Component Manager was never created ...");
+  }
+
+#ifdef MOZ_ENABLE_PROFILER_SPS
+  // In optimized builds we don't do shutdown collections by default, so
+  // uncollected (garbage) objects may keep the nsXPConnect singleton alive,
+  // and its XPCJSContext along with it. However, we still destroy various
+  // bits of state in JS_ShutDown(), so we need to make sure the profiler
+  // can't access them when it shuts down. This call nulls out the
+  // JS pseudo-stack's internal reference to the main thread JSContext,
+  // duplicating the call in XPCJSContext::~XPCJSContext() in case that
+  // never fired.
+  if (PseudoStack* stack = mozilla_get_pseudo_stack()) {
+    stack->sampleContext(nullptr);
+  }
+#endif
+
+  if (sInitializedJS) {
+    // Shut down the JS engine.
+    JS_ShutDown();
+    sInitializedJS = false;
+  }
+
+  // Release our own singletons
+  // Do this _after_ shutting down the component manager, because the
+  // JS component loader will use XPConnect to call nsIModule::canUnload,
+  // and that will spin up the InterfaceInfoManager again -- bad mojo
+  XPTInterfaceInfoManager::FreeInterfaceInfoManager();
+
+  // Finally, release the component manager last because it unloads the
+  // libraries:
+  if (nsComponentManagerImpl::gComponentManager) {
+    nsrefcnt cnt;
+    NS_RELEASE2(nsComponentManagerImpl::gComponentManager, cnt);
+    NS_ASSERTION(cnt == 0, "Component Manager being held past XPCOM shutdown.");
+  }
+  nsComponentManagerImpl::gComponentManager = nullptr;
+  nsCategoryManager::Destroy();
+
+  NS_ShutdownAtomTable();
+
+  NS_IF_RELEASE(gDebug);
+
+  delete sIOThread;
+  sIOThread = nullptr;
+
+  delete sMessageLoop;
+  sMessageLoop = nullptr;
+
+  if (sCommandLineWasInitialized) {
+    CommandLine::Terminate();
+    sCommandLineWasInitialized = false;
+  }
+
+  delete sExitManager;
+  sExitManager = nullptr;
+
+  Omnijar::CleanUp();
+
+  HangMonitor::Shutdown();
+
+  delete sMainHangMonitor;
+  sMainHangMonitor = nullptr;
+
+  BackgroundHangMonitor::Shutdown();
+
+  profiler_shutdown();
+
+  NS_LogTerm();
+
+#if defined(MOZ_WIDGET_GONK)
+  // This _exit(0) call is intended to be temporary, to get shutdown leak
+  // checking working on non-B2G platforms.
+  // On debug B2G, the child process crashes very late.  Instead, just
+  // give up so at least we exit cleanly. See bug 1071866.
+  if (XRE_IsContentProcess()) {
+      NS_WARNING("Exiting child process early!");
+      _exit(0);
+  }
+#endif
+
+  return NS_OK;
+}
+
+} // namespace mozilla