Issue #1603 - Part 1: Reorganize ScriptLoader/ScriptElement

- Moves scripting parts of DOM into 'dom/script'
- Renames nsScript{Loader/Element} to Script{Loader/Element}
- Adjusts all callers

1 files changed, 0 insertions, 839 deletions

diff --git a/dom/base/ScriptSettings.cpp b/dom/base/ScriptSettings.cpp
deleted file mode 100644
index 92ab221c9..000000000
--- a/dom/base/ScriptSettings.cpp
+++ /dev/null
@@ -1,839 +0,0 @@
-/* -*- 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 "mozilla/dom/ScriptSettings.h"
-#include "mozilla/ThreadLocal.h"
-#include "mozilla/Assertions.h"
-#include "mozilla/CycleCollectedJSContext.h"
-
-#include "jsapi.h"
-#include "xpcpublic.h"
-#include "nsIGlobalObject.h"
-#include "nsIDocShell.h"
-#include "nsIScriptGlobalObject.h"
-#include "nsIScriptContext.h"
-#include "nsContentUtils.h"
-#include "nsGlobalWindow.h"
-#include "nsPIDOMWindow.h"
-#include "nsTArray.h"
-#include "nsJSUtils.h"
-#include "nsDOMJSUtils.h"
-#include "WorkerPrivate.h"
-
-namespace mozilla {
-namespace dom {
-
-static MOZ_THREAD_LOCAL(ScriptSettingsStackEntry*) sScriptSettingsTLS;
-static bool sScriptSettingsTLSInitialized;
-
-class ScriptSettingsStack {
-public:
-  static ScriptSettingsStackEntry* Top() {
-    return sScriptSettingsTLS.get();
-  }
-
-  static void Push(ScriptSettingsStackEntry *aEntry) {
-    MOZ_ASSERT(!aEntry->mOlder);
-    // Whenever JSAPI use is disabled, the next stack entry pushed must
-    // not be an AutoIncumbentScript.
-    MOZ_ASSERT_IF(!Top() || Top()->NoJSAPI(),
-                  !aEntry->IsIncumbentScript());
-    // Whenever the top entry is not an incumbent canidate, the next stack entry
-    // pushed must not be an AutoIncumbentScript.
-    MOZ_ASSERT_IF(Top() && !Top()->IsIncumbentCandidate(),
-                  !aEntry->IsIncumbentScript());
-
-    aEntry->mOlder = Top();
-    sScriptSettingsTLS.set(aEntry);
-  }
-
-  static void Pop(ScriptSettingsStackEntry *aEntry) {
-    MOZ_ASSERT(aEntry == Top());
-    sScriptSettingsTLS.set(aEntry->mOlder);
-  }
-
-  static nsIGlobalObject* IncumbentGlobal() {
-    ScriptSettingsStackEntry *entry = Top();
-    while (entry) {
-      if (entry->IsIncumbentCandidate()) {
-        return entry->mGlobalObject;
-      }
-      entry = entry->mOlder;
-    }
-    return nullptr;
-  }
-
-  static ScriptSettingsStackEntry* EntryPoint() {
-    ScriptSettingsStackEntry *entry = Top();
-    while (entry) {
-      if (entry->IsEntryCandidate()) {
-        return entry;
-      }
-      entry = entry->mOlder;
-    }
-    return nullptr;
-  }
-
-  static nsIGlobalObject* EntryGlobal() {
-    ScriptSettingsStackEntry *entry = EntryPoint();
-    if (!entry) {
-      return nullptr;
-    }
-    return entry->mGlobalObject;
-  }
-
-#ifdef DEBUG
-  static ScriptSettingsStackEntry* TopNonIncumbentScript() {
-    ScriptSettingsStackEntry *entry = Top();
-    while (entry) {
-      if (!entry->IsIncumbentScript()) {
-        return entry;
-      }
-      entry = entry->mOlder;
-    }
-    return nullptr;
-  }
-#endif // DEBUG
-
-};
-
-static unsigned long gRunToCompletionListeners = 0;
-
-void
-UseEntryScriptProfiling()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  ++gRunToCompletionListeners;
-}
-
-void
-UnuseEntryScriptProfiling()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(gRunToCompletionListeners > 0);
-  --gRunToCompletionListeners;
-}
-
-void
-InitScriptSettings()
-{
-  bool success = sScriptSettingsTLS.init();
-  if (!success) {
-    MOZ_CRASH();
-  }
-
-  sScriptSettingsTLS.set(nullptr);
-  sScriptSettingsTLSInitialized = true;
-}
-
-void
-DestroyScriptSettings()
-{
-  MOZ_ASSERT(sScriptSettingsTLS.get() == nullptr);
-}
-
-bool
-ScriptSettingsInitialized()
-{
-  return sScriptSettingsTLSInitialized;
-}
-
-ScriptSettingsStackEntry::ScriptSettingsStackEntry(nsIGlobalObject *aGlobal,
-                                                   Type aType)
-  : mGlobalObject(aGlobal)
-  , mType(aType)
-  , mOlder(nullptr)
-{
-  MOZ_ASSERT_IF(IsIncumbentCandidate() && !NoJSAPI(), mGlobalObject);
-  MOZ_ASSERT(!mGlobalObject || mGlobalObject->GetGlobalJSObject(),
-             "Must have an actual JS global for the duration on the stack");
-  MOZ_ASSERT(!mGlobalObject ||
-             JS_IsGlobalObject(mGlobalObject->GetGlobalJSObject()),
-             "No outer windows allowed");
-}
-
-ScriptSettingsStackEntry::~ScriptSettingsStackEntry()
-{
-  // We must have an actual JS global for the entire time this is on the stack.
-  MOZ_ASSERT_IF(mGlobalObject, mGlobalObject->GetGlobalJSObject());
-}
-
-// If the entry or incumbent global ends up being something that the subject
-// principal doesn't subsume, we don't want to use it. This never happens on
-// the web, but can happen with asymmetric privilege relationships (i.e.
-// nsExpandedPrincipal and System Principal).
-//
-// The most correct thing to use instead would be the topmost global on the
-// callstack whose principal is subsumed by the subject principal. But that's
-// hard to compute, so we just substitute the global of the current
-// compartment. In practice, this is fine.
-//
-// Note that in particular things like:
-//
-// |SpecialPowers.wrap(crossOriginWindow).eval(open())|
-//
-// trigger this case. Although both the entry global and the current global
-// have normal principals, the use of Gecko-specific System-Principaled JS
-// puts the code from two different origins on the callstack at once, which
-// doesn't happen normally on the web.
-static nsIGlobalObject*
-ClampToSubject(nsIGlobalObject* aGlobalOrNull)
-{
-  if (!aGlobalOrNull || !NS_IsMainThread()) {
-    return aGlobalOrNull;
-  }
-
-  nsIPrincipal* globalPrin = aGlobalOrNull->PrincipalOrNull();
-  NS_ENSURE_TRUE(globalPrin, GetCurrentGlobal());
-  if (!nsContentUtils::SubjectPrincipalOrSystemIfNativeCaller()->SubsumesConsideringDomain(globalPrin)) {
-    return GetCurrentGlobal();
-  }
-
-  return aGlobalOrNull;
-}
-
-nsIGlobalObject*
-GetEntryGlobal()
-{
-  return ClampToSubject(ScriptSettingsStack::EntryGlobal());
-}
-
-nsIDocument*
-GetEntryDocument()
-{
-  nsIGlobalObject* global = GetEntryGlobal();
-  nsCOMPtr<nsPIDOMWindowInner> entryWin = do_QueryInterface(global);
-
-  // If our entry global isn't a window, see if it's an addon scope associated
-  // with a window. If it is, the caller almost certainly wants that rather
-  // than null.
-  if (!entryWin && global) {
-    if (auto* win = xpc::AddonWindowOrNull(global->GetGlobalJSObject())) {
-      entryWin = win->AsInner();
-    }
-  }
-
-  return entryWin ? entryWin->GetExtantDoc() : nullptr;
-}
-
-nsIGlobalObject*
-GetIncumbentGlobal()
-{
-  // We need the current JSContext in order to check the JS for
-  // scripted frames that may have appeared since anyone last
-  // manipulated the stack. If it's null, that means that there
-  // must be no entry global on the stack, and therefore no incumbent
-  // global either.
-  JSContext *cx = nsContentUtils::GetCurrentJSContextForThread();
-  if (!cx) {
-    MOZ_ASSERT(ScriptSettingsStack::EntryGlobal() == nullptr);
-    return nullptr;
-  }
-
-  // See what the JS engine has to say. If we've got a scripted caller
-  // override in place, the JS engine will lie to us and pretend that
-  // there's nothing on the JS stack, which will cause us to check the
-  // incumbent script stack below.
-  if (JSObject *global = JS::GetScriptedCallerGlobal(cx)) {
-    return ClampToSubject(xpc::NativeGlobal(global));
-  }
-
-  // Ok, nothing from the JS engine. Let's use whatever's on the
-  // explicit stack.
-  return ClampToSubject(ScriptSettingsStack::IncumbentGlobal());
-}
-
-nsIGlobalObject*
-GetCurrentGlobal()
-{
-  JSContext *cx = nsContentUtils::GetCurrentJSContextForThread();
-  if (!cx) {
-    return nullptr;
-  }
-
-  JSObject *global = JS::CurrentGlobalOrNull(cx);
-  if (!global) {
-    return nullptr;
-  }
-
-  return xpc::NativeGlobal(global);
-}
-
-nsIPrincipal*
-GetWebIDLCallerPrincipal()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  ScriptSettingsStackEntry *entry = ScriptSettingsStack::EntryPoint();
-
-  // If we have an entry point that is not NoJSAPI, we know it must be an
-  // AutoEntryScript.
-  if (!entry || entry->NoJSAPI()) {
-    return nullptr;
-  }
-  AutoEntryScript* aes = static_cast<AutoEntryScript*>(entry);
-
-  return aes->mWebIDLCallerPrincipal;
-}
-
-bool
-IsJSAPIActive()
-{
-  ScriptSettingsStackEntry* topEntry = ScriptSettingsStack::Top();
-  return topEntry && !topEntry->NoJSAPI();
-}
-
-namespace danger {
-JSContext*
-GetJSContext()
-{
-  return CycleCollectedJSContext::Get()->Context();
-}
-} // namespace danger
-
-JS::RootingContext*
-RootingCx()
-{
-  return CycleCollectedJSContext::Get()->RootingCx();
-}
-
-AutoJSAPI::AutoJSAPI()
-  : ScriptSettingsStackEntry(nullptr, eJSAPI)
-  , mCx(nullptr)
-  , mIsMainThread(false) // For lack of anything better
-{
-}
-
-AutoJSAPI::~AutoJSAPI()
-{
-  if (!mCx) {
-    // No need to do anything here: we never managed to Init, so can't have an
-    // exception on our (nonexistent) JSContext.  We also don't need to restore
-    // any state on it.  Finally, we never made it to pushing outselves onto the
-    // ScriptSettingsStack, so shouldn't pop.
-    MOZ_ASSERT(ScriptSettingsStack::Top() != this);
-    return;
-  }
-
-  ReportException();
-
-  if (mOldWarningReporter.isSome()) {
-    JS::SetWarningReporter(cx(), mOldWarningReporter.value());
-  }
-
-  // Leave the request before popping.
-  if (mIsMainThread) {
-    mAutoRequest.reset();
-  }
-
-  ScriptSettingsStack::Pop(this);
-}
-
-void
-WarningOnlyErrorReporter(JSContext* aCx, JSErrorReport* aRep);
-
-void
-AutoJSAPI::InitInternal(nsIGlobalObject* aGlobalObject, JSObject* aGlobal,
-                        JSContext* aCx, bool aIsMainThread)
-{
-  MOZ_ASSERT(aCx);
-  MOZ_ASSERT(aCx == danger::GetJSContext());
-  MOZ_ASSERT(aIsMainThread == NS_IsMainThread());
-  MOZ_ASSERT(bool(aGlobalObject) == bool(aGlobal));
-  MOZ_ASSERT_IF(aGlobalObject, aGlobalObject->GetGlobalJSObject() == aGlobal);
-#ifdef DEBUG
-  bool haveException = JS_IsExceptionPending(aCx);
-#endif // DEBUG
-
-  mCx = aCx;
-  mIsMainThread = aIsMainThread;
-  mGlobalObject = aGlobalObject;
-  if (aIsMainThread) {
-    // We _could_ just unconditionally emplace mAutoRequest here.  It's just not
-    // needed on worker threads, and we're hoping to kill it on the main thread
-    // too.
-    mAutoRequest.emplace(mCx);
-  }
-  if (aGlobal) {
-    JS::ExposeObjectToActiveJS(aGlobal);
-  }
-  mAutoNullableCompartment.emplace(mCx, aGlobal);
-
-  ScriptSettingsStack::Push(this);
-
-  mOldWarningReporter.emplace(JS::GetWarningReporter(aCx));
-
-  JS::SetWarningReporter(aCx, WarningOnlyErrorReporter);
-
-#ifdef DEBUG
-  if (haveException) {
-    JS::Rooted<JS::Value> exn(aCx);
-    JS_GetPendingException(aCx, &exn);
-
-    JS_ClearPendingException(aCx);
-    if (exn.isObject()) {
-      JS::Rooted<JSObject*> exnObj(aCx, &exn.toObject());
-
-      nsAutoJSString stack, filename, name, message;
-      int32_t line;
-
-      JS::Rooted<JS::Value> tmp(aCx);
-      if (!JS_GetProperty(aCx, exnObj, "filename", &tmp)) {
-        JS_ClearPendingException(aCx);
-      }
-      if (tmp.isUndefined()) {
-        if (!JS_GetProperty(aCx, exnObj, "fileName", &tmp)) {
-          JS_ClearPendingException(aCx);
-        }
-      }
-
-      if (!filename.init(aCx, tmp)) {
-        JS_ClearPendingException(aCx);
-      }
-
-      if (!JS_GetProperty(aCx, exnObj, "stack", &tmp) ||
-          !stack.init(aCx, tmp)) {
-        JS_ClearPendingException(aCx);
-      }
-
-      if (!JS_GetProperty(aCx, exnObj, "name", &tmp) ||
-          !name.init(aCx, tmp)) {
-        JS_ClearPendingException(aCx);
-      }
-
-      if (!JS_GetProperty(aCx, exnObj, "message", &tmp) ||
-          !message.init(aCx, tmp)) {
-        JS_ClearPendingException(aCx);
-      }
-
-      if (!JS_GetProperty(aCx, exnObj, "lineNumber", &tmp) ||
-          !JS::ToInt32(aCx, tmp, &line)) {
-        JS_ClearPendingException(aCx);
-        line = 0;
-      }
-
-      printf_stderr("PREEXISTING EXCEPTION OBJECT: '%s: %s'\n%s:%d\n%s\n",
-                    NS_ConvertUTF16toUTF8(name).get(),
-                    NS_ConvertUTF16toUTF8(message).get(),
-                    NS_ConvertUTF16toUTF8(filename).get(), line,
-                    NS_ConvertUTF16toUTF8(stack).get());
-    } else {
-      // It's a primitive... not much we can do other than stringify it.
-      nsAutoJSString exnStr;
-      if (!exnStr.init(aCx, exn)) {
-        JS_ClearPendingException(aCx);
-      }
-
-      printf_stderr("PREEXISTING EXCEPTION PRIMITIVE: %s\n",
-                    NS_ConvertUTF16toUTF8(exnStr).get());
-    }
-    MOZ_ASSERT(false, "We had an exception; we should not have");
-  }
-#endif // DEBUG
-}
-
-AutoJSAPI::AutoJSAPI(nsIGlobalObject* aGlobalObject,
-                     bool aIsMainThread,
-                     Type aType)
-  : ScriptSettingsStackEntry(aGlobalObject, aType)
-  , mIsMainThread(aIsMainThread)
-{
-  MOZ_ASSERT(aGlobalObject);
-  MOZ_ASSERT(aGlobalObject->GetGlobalJSObject(), "Must have a JS global");
-  MOZ_ASSERT(aIsMainThread == NS_IsMainThread());
-
-  InitInternal(aGlobalObject, aGlobalObject->GetGlobalJSObject(),
-               danger::GetJSContext(), aIsMainThread);
-}
-
-void
-AutoJSAPI::Init()
-{
-  MOZ_ASSERT(!mCx, "An AutoJSAPI should only be initialised once");
-
-  InitInternal(/* aGlobalObject */ nullptr, /* aGlobal */ nullptr,
-               danger::GetJSContext(), NS_IsMainThread());
-}
-
-bool
-AutoJSAPI::Init(nsIGlobalObject* aGlobalObject, JSContext* aCx)
-{
-  MOZ_ASSERT(!mCx, "An AutoJSAPI should only be initialised once");
-  MOZ_ASSERT(aCx);
-
-  if (NS_WARN_IF(!aGlobalObject)) {
-    return false;
-  }
-
-  JSObject* global = aGlobalObject->GetGlobalJSObject();
-  if (NS_WARN_IF(!global)) {
-    return false;
-  }
-
-  InitInternal(aGlobalObject, global, aCx, NS_IsMainThread());
-  return true;
-}
-
-bool
-AutoJSAPI::Init(nsIGlobalObject* aGlobalObject)
-{
-  return Init(aGlobalObject, danger::GetJSContext());
-}
-
-bool
-AutoJSAPI::Init(JSObject* aObject)
-{
-  nsIGlobalObject* global = nullptr;
-  if (aObject)
-    global = xpc::NativeGlobal(aObject);
-  if (global)
-    return Init(global);
-  else
-    return false;
-}
-
-bool
-AutoJSAPI::Init(nsPIDOMWindowInner* aWindow, JSContext* aCx)
-{
-  return Init(nsGlobalWindow::Cast(aWindow), aCx);
-}
-
-bool
-AutoJSAPI::Init(nsPIDOMWindowInner* aWindow)
-{
-  return Init(nsGlobalWindow::Cast(aWindow));
-}
-
-bool
-AutoJSAPI::Init(nsGlobalWindow* aWindow, JSContext* aCx)
-{
-  return Init(static_cast<nsIGlobalObject*>(aWindow), aCx);
-}
-
-bool
-AutoJSAPI::Init(nsGlobalWindow* aWindow)
-{
-  return Init(static_cast<nsIGlobalObject*>(aWindow));
-}
-
-// Even with autoJSAPIOwnsErrorReporting, the JS engine still sends warning
-// reports to the JSErrorReporter as soon as they are generated. These go
-// directly to the console, so we can handle them easily here.
-//
-// Eventually, SpiderMonkey will have a special-purpose callback for warnings
-// only.
-void
-WarningOnlyErrorReporter(JSContext* aCx, JSErrorReport* aRep)
-{
-  MOZ_ASSERT(JSREPORT_IS_WARNING(aRep->flags));
-  if (!NS_IsMainThread()) {
-    // Reporting a warning on workers is a bit complicated because we have to
-    // climb our parent chain until we get to the main thread.  So go ahead and
-    // just go through the worker ReportError codepath here.
-    //
-    // That said, it feels like we should be able to short-circuit things a bit
-    // here by posting an appropriate runnable to the main thread directly...
-    // Worth looking into sometime.
-    workers::WorkerPrivate* worker = workers::GetWorkerPrivateFromContext(aCx);
-    MOZ_ASSERT(worker);
-
-    worker->ReportError(aCx, JS::ConstUTF8CharsZ(), aRep);
-    return;
-  }
-
-  RefPtr<xpc::ErrorReport> xpcReport = new xpc::ErrorReport();
-  nsGlobalWindow* win = xpc::CurrentWindowOrNull(aCx);
-  if (!win) {
-    // We run addons in a separate privileged compartment, but if we're in an
-    // addon compartment we should log warnings to the console of the associated
-    // DOM Window.
-    win = xpc::AddonWindowOrNull(JS::CurrentGlobalOrNull(aCx));
-  }
-  xpcReport->Init(aRep, nullptr, nsContentUtils::IsCallerChrome(),
-                  win ? win->AsInner()->WindowID() : 0);
-  xpcReport->LogToConsole();
-}
-
-void
-AutoJSAPI::ReportException()
-{
-  if (!HasException()) {
-    return;
-  }
-
-  // AutoJSAPI uses a JSAutoNullableCompartment, and may be in a null
-  // compartment when the destructor is called. However, the JS engine
-  // requires us to be in a compartment when we fetch the pending exception.
-  // In this case, we enter the privileged junk scope and don't dispatch any
-  // error events.
-  JS::Rooted<JSObject*> errorGlobal(cx(), JS::CurrentGlobalOrNull(cx()));
-  if (!errorGlobal) {
-    if (mIsMainThread) {
-      errorGlobal = xpc::PrivilegedJunkScope();
-    } else {
-      errorGlobal = workers::GetCurrentThreadWorkerGlobal();
-    }
-  }
-  JSAutoCompartment ac(cx(), errorGlobal);
-  JS::Rooted<JS::Value> exn(cx());
-  js::ErrorReport jsReport(cx());
-  if (StealException(&exn) &&
-      jsReport.init(cx(), exn, js::ErrorReport::WithSideEffects)) {
-    if (mIsMainThread) {
-      RefPtr<xpc::ErrorReport> xpcReport = new xpc::ErrorReport();
-
-      RefPtr<nsGlobalWindow> win = xpc::WindowGlobalOrNull(errorGlobal);
-      if (!win) {
-        // We run addons in a separate privileged compartment, but they still
-        // expect to trigger the onerror handler of their associated DOM Window.
-        win = xpc::AddonWindowOrNull(errorGlobal);
-      }
-      nsPIDOMWindowInner* inner = win ? win->AsInner() : nullptr;
-      xpcReport->Init(jsReport.report(), jsReport.toStringResult().c_str(),
-                      nsContentUtils::IsCallerChrome(),
-                      inner ? inner->WindowID() : 0);
-      if (inner && jsReport.report()->errorNumber != JSMSG_OUT_OF_MEMORY) {
-        JS::RootingContext* rcx = JS::RootingContext::get(cx());
-        DispatchScriptErrorEvent(inner, rcx, xpcReport, exn);
-      } else {
-        JS::Rooted<JSObject*> stack(cx(),
-          xpc::FindExceptionStackForConsoleReport(inner, exn));
-        xpcReport->LogToConsoleWithStack(stack);
-      }
-    } else {
-      // On a worker, we just use the worker error reporting mechanism and don't
-      // bother with xpc::ErrorReport.  This will ensure that all the right
-      // events (which are a lot more complicated than in the window case) get
-      // fired.
-      workers::WorkerPrivate* worker = workers::GetCurrentThreadWorkerPrivate();
-      MOZ_ASSERT(worker);
-      MOZ_ASSERT(worker->GetJSContext() == cx());
-      // Before invoking ReportError, put the exception back on the context,
-      // because it may want to put it in its error events and has no other way
-      // to get hold of it.  After we invoke ReportError, clear the exception on
-      // cx(), just in case ReportError didn't.
-      JS_SetPendingException(cx(), exn);
-      worker->ReportError(cx(), jsReport.toStringResult(), jsReport.report());
-      ClearException();
-    }
-  } else {
-    NS_WARNING("OOMed while acquiring uncaught exception from JSAPI");
-    ClearException();
-  }
-}
-
-bool
-AutoJSAPI::PeekException(JS::MutableHandle<JS::Value> aVal)
-{
-  MOZ_ASSERT_IF(mIsMainThread, IsStackTop());
-  MOZ_ASSERT(HasException());
-  MOZ_ASSERT(js::GetContextCompartment(cx()));
-  if (!JS_GetPendingException(cx(), aVal)) {
-    return false;
-  }
-  return true;
-}
-
-bool
-AutoJSAPI::StealException(JS::MutableHandle<JS::Value> aVal)
-{
-  if (!PeekException(aVal)) {
-    return false;
-  }
-  JS_ClearPendingException(cx());
-  return true;
-}
-
-#ifdef DEBUG
-bool
-AutoJSAPI::IsStackTop() const
-{
-  return ScriptSettingsStack::TopNonIncumbentScript() == this;
-}
-#endif // DEBUG
-
-AutoEntryScript::AutoEntryScript(nsIGlobalObject* aGlobalObject,
-                                 const char *aReason,
-                                 bool aIsMainThread)
-  : AutoJSAPI(aGlobalObject, aIsMainThread, eEntryScript)
-  , mWebIDLCallerPrincipal(nullptr)
-{
-  MOZ_ASSERT(aGlobalObject);
-
-  if (aIsMainThread && gRunToCompletionListeners > 0) {
-    mDocShellEntryMonitor.emplace(cx(), aReason);
-  }
-}
-
-AutoEntryScript::AutoEntryScript(JSObject* aObject,
-                                 const char *aReason,
-                                 bool aIsMainThread)
-  : AutoEntryScript(xpc::NativeGlobal(aObject), aReason, aIsMainThread)
-{
-}
-
-AutoEntryScript::~AutoEntryScript()
-{
-  // GC when we pop a script entry point. This is a useful heuristic that helps
-  // us out on certain (flawed) benchmarks like sunspider, because it lets us
-  // avoid GCing during the timing loop.
-  JS_MaybeGC(cx());
-}
-
-AutoEntryScript::DocshellEntryMonitor::DocshellEntryMonitor(JSContext* aCx,
-                                                            const char* aReason)
-  : JS::dbg::AutoEntryMonitor(aCx)
-  , mReason(aReason)
-{
-}
-
-void
-AutoEntryScript::DocshellEntryMonitor::Entry(JSContext* aCx, JSFunction* aFunction,
-                                             JSScript* aScript, JS::Handle<JS::Value> aAsyncStack,
-                                             const char* aAsyncCause)
-{
-  JS::Rooted<JSFunction*> rootedFunction(aCx);
-  if (aFunction) {
-    rootedFunction = aFunction;
-  }
-  JS::Rooted<JSScript*> rootedScript(aCx);
-  if (aScript) {
-    rootedScript = aScript;
-  }
-
-  nsCOMPtr<nsPIDOMWindowInner> window =
-    do_QueryInterface(xpc::NativeGlobal(JS::CurrentGlobalOrNull(aCx)));
-  if (!window || !window->GetDocShell() ||
-      !window->GetDocShell()->GetRecordProfileTimelineMarkers()) {
-    return;
-  }
-
-  nsCOMPtr<nsIDocShell> docShellForJSRunToCompletion = window->GetDocShell();
-  nsString filename;
-  uint32_t lineNumber = 0;
-
-  js::AutoStableStringChars functionName(aCx);
-  if (rootedFunction) {
-    JS::Rooted<JSString*> displayId(aCx, JS_GetFunctionDisplayId(rootedFunction));
-    if (displayId) {
-      if (!functionName.initTwoByte(aCx, displayId)) {
-        JS_ClearPendingException(aCx);
-        return;
-      }
-    }
-  }
-
-  if (!rootedScript) {
-    rootedScript = JS_GetFunctionScript(aCx, rootedFunction);
-  }
-  if (rootedScript) {
-    filename = NS_ConvertUTF8toUTF16(JS_GetScriptFilename(rootedScript));
-    lineNumber = JS_GetScriptBaseLineNumber(aCx, rootedScript);
-  }
-
-  if (!filename.IsEmpty() || functionName.isTwoByte()) {
-    const char16_t* functionNameChars = functionName.isTwoByte() ?
-      functionName.twoByteChars() : nullptr;
-
-    docShellForJSRunToCompletion->NotifyJSRunToCompletionStart(mReason,
-                                                               functionNameChars,
-                                                               filename.BeginReading(),
-                                                               lineNumber, aAsyncStack,
-                                                               aAsyncCause);
-  }
-}
-
-void
-AutoEntryScript::DocshellEntryMonitor::Exit(JSContext* aCx)
-{
-  nsCOMPtr<nsPIDOMWindowInner> window =
-    do_QueryInterface(xpc::NativeGlobal(JS::CurrentGlobalOrNull(aCx)));
-  // Not really worth checking GetRecordProfileTimelineMarkers here.
-  if (window && window->GetDocShell()) {
-    nsCOMPtr<nsIDocShell> docShellForJSRunToCompletion = window->GetDocShell();
-    docShellForJSRunToCompletion->NotifyJSRunToCompletionStop();
-  }
-}
-
-AutoIncumbentScript::AutoIncumbentScript(nsIGlobalObject* aGlobalObject)
-  : ScriptSettingsStackEntry(aGlobalObject, eIncumbentScript)
-  , mCallerOverride(nsContentUtils::GetCurrentJSContextForThread())
-{
-  ScriptSettingsStack::Push(this);
-}
-
-AutoIncumbentScript::~AutoIncumbentScript()
-{
-  ScriptSettingsStack::Pop(this);
-}
-
-AutoNoJSAPI::AutoNoJSAPI()
-  : ScriptSettingsStackEntry(nullptr, eNoJSAPI)
-{
-  ScriptSettingsStack::Push(this);
-}
-
-AutoNoJSAPI::~AutoNoJSAPI()
-{
-  ScriptSettingsStack::Pop(this);
-}
-
-} // namespace dom
-
-AutoJSContext::AutoJSContext(MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_IN_IMPL)
-  : mCx(nullptr)
-{
-  JS::AutoSuppressGCAnalysis nogc;
-  MOZ_ASSERT(!mCx, "mCx should not be initialized!");
-  MOZ_ASSERT(NS_IsMainThread());
-
-  MOZ_GUARD_OBJECT_NOTIFIER_INIT;
-
-  if (dom::IsJSAPIActive()) {
-    mCx = dom::danger::GetJSContext();
-  } else {
-    mJSAPI.Init();
-    mCx = mJSAPI.cx();
-  }
-}
-
-AutoJSContext::operator JSContext*() const
-{
-  return mCx;
-}
-
-AutoSafeJSContext::AutoSafeJSContext(MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_IN_IMPL)
-  : AutoJSAPI()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  MOZ_GUARD_OBJECT_NOTIFIER_INIT;
-
-  DebugOnly<bool> ok = Init(xpc::UnprivilegedJunkScope());
-  MOZ_ASSERT(ok,
-             "This is quite odd.  We should have crashed in the "
-             "xpc::NativeGlobal() call if xpc::UnprivilegedJunkScope() "
-             "returned null, and inited correctly otherwise!");
-}
-
-AutoSlowOperation::AutoSlowOperation(MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_IN_IMPL)
-  : AutoJSAPI()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  MOZ_GUARD_OBJECT_NOTIFIER_INIT;
-
-  Init();
-}
-
-void
-AutoSlowOperation::CheckForInterrupt()
-{
-  // JS_CheckForInterrupt expects us to be in a compartment.
-  JSAutoCompartment ac(cx(), xpc::UnprivilegedJunkScope());
-  JS_CheckForInterrupt(cx());
-}
-
-} // namespace mozilla